Free Ecommerce tools.
A growing toolbox of 600+ free in-browser tools for product feeds, SEO, unit economics, pricing and logistics. Validators, calculators, generators and converters, all client-side, no upload, no email gate.
Browse all 609 toolsMost popular tools
Hand-picked starting points used by D2C, ecommerce and agency teams.
GMC Error Lookup
Paste a Google Merchant Centre disapproval code or message to see a plain-English fix.
ROAS Calculator
Plug in spend, conversion rate, average order value and margin, get ROAS, profit and break-even targets.
LTV Calculator
Calculate Customer Lifetime Value from AOV, purchase frequency, customer lifespan and gross margin.
GTIN Validator
Bulk-validate GTIN-8, GTIN-12 (UPC), GTIN-13 (EAN) and GTIN-14 check digits in your browser.
ACP Validator
Validate your product feed against the OpenAI / Stripe Agentic Commerce Protocol spec.
Shopify → Google
Drop your Shopify product export and download a Google Merchant Centre–ready CSV or XML feed.
Image Compressor
Compress product images in your browser, JPG, PNG and WebP, with quality slider.
SERP Preview
Type a title, description and URL, see exactly how your result renders in Google search.
Validators
Validate product feeds, schemas and structured data against official Google Shopping, Meta, TikTok and marketplace specs.
88 tools
GTIN, EAN & UPC Validator
Bulk-validate GTIN-8, GTIN-12 (UPC), GTIN-13 (EAN) and GTIN-14 check digits in your browser.
Product Title Character Counter
See how your product title looks across Google, Meta, Amazon, eBay, TikTok and Bing, all at once.
Product Schema Markup Validator
Paste schema.org/Product JSON-LD and check it against Google's required and recommended fields.
Bulk Image URL Checker
Paste image URLs from your product feed and see which load, which 404, and which dimensions break shopping channels.
Image Format Size Comparator
Drop an image, see file size in JPG vs PNG vs WebP, pick the smallest format that meets your quality bar.
Email Subject Line Tester
Test subject lines for length, spam words, emoji rendering and Gmail / Outlook preview.
Email Preheader Length Checker
Check your preheader against Gmail, Apple Mail and Outlook truncation lengths.
Email Spam Score Checker
Paste your email subject + body, score against common spam triggers (words, ALL CAPS, exclamation, link density).
SMS Character & Segment Counter
Count SMS characters and segments, GSM-7 (160 chars) vs UCS-2 (70 chars) with emoji detection.
Bing Shopping Feed Validator
Validate your product feed against Microsoft Advertising / Bing Shopping feed requirements.
TikTok Shop Feed Validator
Validate your product feed against TikTok Shop catalog requirements and category schema.
Pinterest Catalog Feed Validator
Validate your Pinterest catalog feed for required fields, image specs and shopping-ad eligibility.
MPN Format Validator
Bulk-validate Manufacturer Part Numbers against common format rules, length, character set, brand-pattern matching.
Amazon Marketplace Feed Validator
Validate your Amazon Marketplace flat-file feed for required ASIN-linked fields, GTIN compliance and image specs.
Walmart Marketplace Feed Validator
Validate your Walmart Marketplace item feed for required category fields, UPC/GTIN and image URLs.
eBay Feed Validator
Validate your eBay item feed for the 80-char title cap, condition codes and required item specifics.
Etsy Feed Validator
Validate your Etsy bulk listings CSV for tags, materials, category and image-count requirements.
Wish Feed Validator
Validate your Wish merchant feed (TSV) for MSRP compliance, image URLs and required shipping fields.
Newegg Feed Validator
Validate your Newegg Item Creation Template for UPC, manufacturer part numbers and category fields.
Allegro Feed Validator (Poland)
Validate your Allegro Polish marketplace feed for 75-char title cap, category IDs and parameters.
Bol.com Feed Validator (NL/BE)
Validate your Bol.com feed for EAN matching, delivery codes and Dutch/Belgian marketplace requirements.
Cdiscount Feed Validator (France)
Validate your Cdiscount French marketplace feed for EAN, French-language requirements and stock fields.
Rakuten Marketplace Feed Validator
Validate your Rakuten marketplace feed for category mapping, UPC and inventory fields across JP / EU markets.
Lazada Feed Validator (SEA)
Validate your Lazada SEA feed for package dimensions, category mapping and required SG/MY/ID/TH/PH/VN fields.
Shopee Feed Validator (SEA)
Validate your Shopee SEA catalog for 100-char title cap, image specs and required SG/MY/ID/TH/PH/VN/TW/BR fields.
Tokopedia Feed Validator (Indonesia)
Validate your Tokopedia Indonesia feed for Bahasa fields, weight in grams and required category requirements.
Mercado Libre Feed Validator (LATAM)
Validate your Mercado Libre feed for 60-char title cap, listing type and required LATAM marketplace fields.
Noon Feed Validator (Middle East)
Validate your Noon (formerly Souq) UAE/KSA marketplace feed for Arabic title, delivery codes and required fields.
Catch Feed Validator (Australia)
Validate your Catch.com.au marketplace feed for GTIN, category mapping and required Australian fields.
Kogan Feed Validator (Australia)
Validate your Kogan Marketplace AU feed for AUD pricing, Kogan First eligibility and required AU fields.
Trade Me Feed Validator (NZ)
Validate your Trade Me New Zealand marketplace feed for 80-char title cap, category and Buy Now price.
Fruugo Feed Validator (Cross-border)
Validate your Fruugo cross-border feed (40+ countries) for EAN, GBP pricing and delivery country requirements.
OnBuy Feed Validator (UK)
Validate your OnBuy UK marketplace feed for EAN matching, GBP pricing and required UK fields.
Zalando Feed Validator (Europe, fashion)
Validate your Zalando European fashion feed for size, color, material, gender and EU textile labelling compliance.
About You Feed Validator (Europe, fashion)
Validate your About You feed for 26 European markets, fashion attributes, sizes, colors and material composition.
Westwing Feed Validator (Home, Europe)
Validate your Westwing curated home marketplace feed (DACH + Italy + Iberia) for dimensions, materials and care.
Kaufland.de Feed Validator (Germany)
Validate your Kaufland.de (formerly Real.de) German marketplace feed for EAN matching and German-language requirements.
La Redoute Feed Validator (France, fashion)
Validate your La Redoute French marketplace feed for French-language titles, EAN and EU textile composition.
Email Format Validator (Bulk)
Bulk-validate email addresses against RFC 5322 format. Catches typos, missing @, bad domains.
IBAN Validator
Validate International Bank Account Numbers, checks length per country and mod-97 check digit.
Credit Card Number Validator (Luhn)
Validate credit card numbers using the Luhn algorithm. Detects Visa, Mastercard, Amex, Discover by BIN.
ISBN-10 / ISBN-13 Validator
Validate ISBN-10 and ISBN-13 check digits. For book sellers on Amazon, Walmart, eBay.
Phone Number Format Validator
Bulk-validate phone numbers for country-code presence and length per country.
URL Format Validator (Bulk)
Bulk-validate URLs for protocol, hostname format and basic structural validity.
Color Contrast Checker (WCAG)
Check foreground vs background color contrast against WCAG AA and AAA accessibility standards.
Regex Tester for SKU / GTIN Patterns
Test regex patterns against SKU or GTIN sample strings with live match highlighting.
UTM Parameter Parser
Paste a URL, see all UTM parameters parsed and labelled cleanly.
Pixel-Width Title Checker
Google truncates titles by pixel width, not character count. Check your title's exact pixel width.
ACP (Agentic Commerce Protocol) Feed Validator
Validate your product feed against the OpenAI / Stripe Agentic Commerce Protocol spec.
UCP (Universal Commerce Protocol) Feed Validator
Validate your product feed against the Google / Shopify Universal Commerce Protocol spec.
Product Schema for AI Agents Validator
Check whether your Product JSON-LD includes the merchant-return and shipping fields AI agents need to transact.
Schema.org JSON-LD Validator
Paste any JSON-LD block and validate structure, required fields and common errors across all schema.org types.
Twitter / X Character Counter
Count characters for tweets, 280 limit with live weighted-character calculation (URLs count as 23).
LinkedIn Headline Counter
Count characters for LinkedIn profile headlines, 220 character limit with live preview.
IP Address Validator
Validate IPv4 and IPv6 addresses, instant in-browser check with format detail.
Open Graph Meta Validator
Validate Open Graph meta tags for completeness, flags missing og:image, og:title, og:description, og:url.
HTML Heading Hierarchy Validator
Validate heading hierarchy (H1-H6), flags skipped levels, multiple H1s, accessibility issues.
ARIA Attribute Validator
Validate ARIA attributes in HTML, flags invalid roles, missing required attrs, redundant ARIA.
Hreflang Tag Validator
Validate a set of hreflang tags, check reciprocity, self-reference, x-default, valid codes.
Apple App Store Listing Character Counter
Count characters for Apple App Store listing: name (30), subtitle (30), description (4000), keywords (100).
Google Play Listing Character Counter
Count characters for Google Play listing: title (30), short description (80), full description (4000).
Instagram Bio Character Counter
Count characters for Instagram bio (150 limit), with line break preview.
X / Twitter Bio Character Counter
Count characters for X / Twitter bio (160 limit), with link weighting consideration.
LinkedIn Summary / About Counter
Count characters for LinkedIn About / Summary field (2,600 char limit), with truncation preview.
ISO 8601 Date Validator
Validate ISO 8601 date and datetime strings, used in APIs, feeds, schema.org.
SKU Format Validator
Validate SKU strings against your format rules (length, prefix, allowed chars), bulk validation.
URL Bulk Validator
Validate a list of URLs at once, syntax check, protocol, domain validity (no HTTP call).
Email Syntax Bulk Validator
Validate a list of email addresses for syntax (RFC 5322) and disposable-domain detection.
Phone Number E.164 Validator
Validate phone numbers in E.164 international format (+1234567890), for SMS marketing compliance.
Domain Name Validator
Validate domain name syntax and TLD against common TLD list, bulk validation.
TikTok Bio Character Counter
Count characters for your TikTok bio (80-character limit) with a live preview and remaining counter.
TikTok Caption Character Counter
Count characters for TikTok captions (2,200 char limit) with truncation preview after ~90 visible chars.
Pinterest Bio Character Counter
Count characters for your Pinterest profile bio (160 char limit). Include 2-3 keywords for discoverability.
Pinterest Pin Title Character Counter
Count characters for Pinterest pin titles (100 char limit). Visible portion in search is ~40 chars.
Pinterest Pin Description Counter
Count characters for Pinterest pin descriptions (500 char limit). Drives Pin SEO and discoverability.
YouTube Video Title Character Counter
Count characters for YouTube video titles (100 char limit). Visible in search after ~60 chars.
YouTube Video Description Counter
Count characters for YouTube video descriptions (5,000 char limit). Visible before "...more" is ~157 chars.
YouTube Channel Description Counter
Count characters for YouTube channel descriptions (1,000 char limit). Appears on About tab and in search.
Instagram Caption Character Counter
Count characters for Instagram captions (2,200 char limit) with truncation preview at ~125 chars.
Facebook Post Character Counter
Count characters for Facebook posts (63,206 char limit) with the ~250-char "see more" truncation preview.
LinkedIn Post Character Counter
Count characters for LinkedIn posts (3,000 char limit) with truncation preview at ~210 chars on mobile.
LinkedIn Article Title Counter
Count characters for LinkedIn article titles (150 char limit). Also affects Google search visibility.
Threads (Meta) Post Character Counter
Count characters for Threads posts (500 char limit). URLs and mentions count literally, no weighting.
Bluesky Post Character Counter
Count characters for Bluesky posts (300 char limit). Tighter than X's 280, meant to encourage brevity.
Mastodon Post Character Counter
Count characters for Mastodon posts (default 500 chars; instance admins can configure higher).
Reddit Post Title Character Counter
Count characters for Reddit post titles (300 char hard limit; ~80 visible on mobile feed).
Snapchat Caption Character Counter
Count characters for Snapchat captions (250 char limit). Display overlays the visual, keep them short.
Hashtag Count Validator Per Platform
Check hashtag count against each platform's limits (IG max 30, TikTok unlimited but ~5-8 optimal, LinkedIn 3-5 ideal).
Ad calculators
Run advertising and growth math instantly, ROAS, CPC ceilings, A/B test sample sizes, channel mix and budget pacing.
207 tools
Google Shopping ROAS Calculator
Plug in spend, conversion rate, average order value and margin, get ROAS, profit and break-even targets.
Break-Even CPC Calculator
Work out your maximum profitable CPC from margin, conversion rate and AOV, the bid you can never go above.
Feed Disapproval Cost Calculator
Estimate the daily revenue you're losing while products sit disapproved in Merchant Centre or Meta Catalogue.
Performance Max Budget Calculator
Calculate the minimum daily budget Performance Max needs to learn, based on your tCPA and conversion volume targets.
Meta Advantage+ Budget Calculator
Calculate the daily budget Meta Advantage+ Shopping campaigns need to exit learning and stay efficient.
iOS Attribution Gap Reconciler
Compare platform-reported revenue (Meta + Google) to actual Shopify revenue, see your real blended efficiency.
Google Ads Quality Score Estimator
Estimate Quality Score from CTR, landing page experience and ad relevance, and see the CPC impact.
Target ROAS ↔ Target CPA Converter
Convert between Target ROAS and Target CPA, they're the same constraint expressed differently.
Incrementality Test Sample Size Calculator
How long does a geo-lift / holdout incrementality test need to run? Calculate sample size for statistical significance.
Multi-Currency Price Converter
Convert a price across 30+ major currencies using built-in reference rates.
VAT / GST Calculator
Calculate VAT, GST and sales tax inclusive/exclusive prices for every major country.
US Sales Tax Nexus Estimator
Estimate which US states you have economic nexus in based on your revenue and order volume.
Customs Duty & Landed Cost Calculator
Calculate landed cost for imports, product cost + freight + duty + insurance + handling.
Dim Weight (DIM) Calculator
Calculate dimensional weight for FedEx, UPS and USPS, the higher of actual vs dim weight is what you're billed on.
International Pricing PPP Localiser
Localise your prices for international markets using purchasing power parity (PPP) adjustments.
Feed Size & Crawl Budget Estimator
Estimate uncompressed and gzipped feed file size by SKU count + fields, plan around crawler limits.
UK VAT Calculator
Add or remove UK VAT (20% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Germany VAT (USt) Calculator
Add or remove Germany VAT (19% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
France TVA Calculator
Add or remove France TVA (20% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Italy IVA Calculator
Add or remove Italy IVA (22% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Spain IVA Calculator
Add or remove Spain IVA (21% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Netherlands BTW Calculator
Add or remove Netherlands BTW (21% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Belgium VAT (BTW/TVA) Calculator
Add or remove Belgium VAT (21% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Austria VAT (USt) Calculator
Add or remove Austria VAT (20% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Ireland VAT Calculator
Add or remove Ireland VAT (23% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Sweden Moms (VAT) Calculator
Add or remove Sweden Moms (25% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Denmark Moms (VAT) Calculator
Add or remove Denmark Moms (25% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Finland ALV (VAT) Calculator
Add or remove Finland ALV (24% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Portugal IVA Calculator
Add or remove Portugal IVA (23% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Greece ΦΠΑ (VAT) Calculator
Add or remove Greece ΦΠΑ (24% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Poland VAT Calculator
Add or remove Poland VAT (23% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Czech Republic DPH Calculator
Add or remove Czech Republic DPH (21% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Hungary ÁFA (VAT) Calculator
Add or remove Hungary ÁFA (27% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Romania TVA Calculator
Add or remove Romania TVA (19% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Australia GST Calculator
Add or remove Australia GST (10% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
New Zealand GST Calculator
Add or remove New Zealand GST (15% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
India GST Calculator
Add or remove India GST (18% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Singapore GST Calculator
Add or remove Singapore GST (9% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Canada HST/GST/PST Calculator
Add or remove Canada HST/GST (13% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
Brazil ICMS Calculator
Add or remove Brazil ICMS (18% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
UAE VAT Calculator
Add or remove UAE VAT (5% standard rate, plus reduced rates) on any amount. Inclusive and exclusive calculations.
TikTok Ads Budget Calculator
Calculate the daily TikTok Ads budget you need to exit learning and hit your target conversion volume.
Pinterest Ads Budget Calculator
Calculate the daily Pinterest Ads budget you need to exit learning and hit your target conversion volume.
Snap Ads Budget Calculator
Calculate the daily Snap Ads budget you need to exit learning and hit your target conversion volume.
Reddit Ads Budget Calculator
Calculate the daily Reddit Ads budget you need to exit learning and hit your target conversion volume.
Microsoft Advertising Budget Calculator
Calculate the daily Microsoft Advertising budget you need to exit learning and hit your target conversion volume.
LinkedIn Ads Budget Calculator
Calculate the daily LinkedIn Ads budget you need to exit learning and hit your target conversion volume.
X (Twitter) Ads Budget Calculator
Calculate the daily X Ads budget you need to exit learning and hit your target conversion volume.
YouTube Ads Budget Calculator
Calculate the daily YouTube Ads budget you need to exit learning and hit your target conversion volume.
Spotify Ads Budget Calculator
Calculate the daily Spotify Ad Studio budget you need to exit learning and hit your target conversion volume.
Apple Search Ads Budget Calculator
Calculate the daily Apple Search Ads budget you need to exit learning and hit your target conversion volume.
Amazon DSP Budget Calculator
Calculate the daily Amazon DSP budget you need to exit learning and hit your target conversion volume.
Criteo Budget Calculator
Calculate the daily Criteo budget you need to exit learning and hit your target conversion volume.
FedEx Ground Calculator
Estimate FedEx Ground rates by package weight, dimensions and zone, with dim-weight billing applied.
FedEx Express (2Day / Overnight) Calculator
Estimate FedEx Express (2Day / Overnight) rates by package weight, dimensions and zone, with dim-weight billing applied.
FedEx Home Delivery Calculator
Estimate FedEx Home Delivery rates by package weight, dimensions and zone, with dim-weight billing applied.
UPS Ground Calculator
Estimate UPS Ground rates by package weight, dimensions and zone, with dim-weight billing applied.
UPS Air (Next/2-Day) Calculator
Estimate UPS Air (Next/2-Day) rates by package weight, dimensions and zone, with dim-weight billing applied.
UPS Worldwide Express Calculator
Estimate UPS Worldwide Express rates by package weight, dimensions and zone, with dim-weight billing applied.
USPS Priority Mail Calculator
Estimate USPS Priority Mail rates by package weight, dimensions and zone, with dim-weight billing applied.
USPS Ground Advantage (First Class) Calculator
Estimate USPS Ground Advantage (First Class) rates by package weight, dimensions and zone, with dim-weight billing applied.
USPS Media Mail Calculator
Estimate USPS Media Mail rates by package weight, dimensions and zone, with dim-weight billing applied.
DHL Express Worldwide Calculator
Estimate DHL Express Worldwide rates by package weight, dimensions and zone, with dim-weight billing applied.
Royal Mail (UK) Calculator
Estimate Royal Mail (UK) rates by package weight, dimensions and zone, with dim-weight billing applied.
Australia Post Parcel Calculator
Estimate Australia Post Parcel rates by package weight, dimensions and zone, with dim-weight billing applied.
eBay Fee Calculator
Calculate true eBay seller fees, insertion, final value, PayPal/Managed Payments, promoted listings.
Etsy Fee Calculator
Calculate true Etsy seller proceeds, listing, transaction, payment processing, offsite ad fees.
Amazon FBA Fee Calculator
Calculate Amazon FBA fulfillment, referral and storage fees, see true unit profit.
Mercari Fee Calculator
Calculate Mercari seller fees and true net proceeds, selling fee, processing, shipping.
Poshmark Fee Calculator
Calculate Poshmark seller commission, 20% over $15 or flat $2.95, and true net per sale.
Gift Card Breakage Calculator
Calculate gift card breakage revenue, % of card value never redeemed, recognised as income.
Age Calculator
Calculate exact age in years, months, days from a date of birth to any reference date.
Date Difference Calculator
Calculate the difference between two dates in years, months, weeks, days and total seconds.
Working Days Calculator
Count business days between two dates, skips weekends, optionally skips bank holidays.
Reading Time Calculator
Calculate estimated reading time for any text, by word count and reading speed (200/250/300 wpm).
Amazon ACoS Calculator
Calculate Amazon Advertising Cost of Sales (ACoS) and break-even ACoS by margin.
Amazon TACoS Calculator
Calculate Amazon Total Advertising Cost of Sales (TACoS), ad spend ÷ total Amazon revenue.
Stripe Fee Calculator
Calculate true Stripe processing fees and net proceeds, 2.9% + $0.30 US standard, custom rates supported.
PayPal Fee Calculator
Calculate PayPal processing fees, 2.99% + $0.49 standard, plus international and micropayment rates.
Square Fee Calculator
Calculate Square processing fees, 2.6% + $0.10 in-person, 2.9% + $0.30 online, 3.5% + $0.15 keyed.
Organic CTR by Position Calculator
Estimate organic search clicks by SERP position, industry-average CTR curves applied to your impressions.
Depop Fee Calculator
Calculate true Depop seller fees, 10% Depop fee + payment processing, and net proceeds per sale.
Vinted Fee Calculator
Calculate the Vinted buyer protection fee (charged to buyer) and your true seller proceeds.
Facebook Marketplace Fee Calculator
Calculate Facebook Marketplace shipping fees, 5% per shipment (min $0.40), and net proceeds.
Image Aspect Ratio Calculator
Calculate image aspect ratio and find new dimensions to maintain it when resizing.
Discount Percentage Calculator
Calculate discount percentage from original and sale price, or calculate sale price from % off.
Margin vs Markup Converter
Convert between margin % and markup %, they're not the same, and confusing them tanks profitability.
Tax Inclusive / Exclusive Converter
Convert between tax-inclusive and tax-exclusive prices, for VAT, GST, sales tax at any rate.
CAGR Calculator
Calculate Compound Annual Growth Rate between any two values, used in revenue, MRR, audience growth.
Net Present Value (NPV) Calculator
Calculate Net Present Value of any cashflow stream at a chosen discount rate.
Simple Interest Calculator
Calculate simple interest on a principal, annualised, monthly or any term.
Compound Interest Calculator
Calculate compound interest with optional regular contributions, daily, monthly or annual compounding.
General ROI Calculator
Calculate Return on Investment % and absolute gain/loss for any investment or project.
Add-to-Cart Rate Calculator
Calculate add-to-cart rate and benchmark against industry medians by vertical.
Checkout Completion Rate Calculator
Calculate checkout completion rate and the dollar impact of recovering abandonment.
Funnel Conversion Rate Calculator
Calculate stage-by-stage conversion rates and overall funnel conversion for any custom funnel.
Bounce Rate Revenue Impact Calculator
Calculate the revenue impact of reducing bounce rate by X%, based on session value.
Session Value (RPV) Calculator
Calculate Revenue Per Visitor (session value), the single best CRO benchmarking metric.
Email List Cleanup ROI Calculator
Calculate the deliverability + cost savings from suppressing unengaged email subscribers.
SMS Keyword Campaign ROI Calculator
Calculate ROI for SMS keyword campaigns, opt-in rate, SMS cost, downstream conversion.
Exit-Intent Popup ROI Calculator
Calculate the revenue impact of adding (or removing) an exit-intent popup with email capture.
A/B Test Statistical Significance Calculator
Calculate statistical significance (z-test) for A/B test results, visitors, conversions, declared winners.
Minimum Detectable Effect Calculator
Calculate the minimum lift detectable in an A/B test given your sample size, set test expectations.
A/B Test Duration Calculator
Calculate how many days an A/B test needs to run to reach significance, by traffic and MDE.
TikTok Shop Fee Calculator
Calculate true TikTok Shop seller fees, 8% commission + processing, and net proceeds.
Newegg Marketplace Fee Calculator
Calculate Newegg marketplace seller fees, 8-15% commission by category, and net proceeds.
Reverb Fee Calculator
Calculate Reverb (musical instruments marketplace) seller fees, 5% commission + payment processing.
StockX Fee Calculator
Calculate StockX seller fees, transaction fee + payment processing, sneakers, streetwear, collectibles.
Back Market Fee Calculator
Calculate Back Market (refurbished electronics marketplace) seller fees and net proceeds.
Shopify App Cost ROI Calculator
Calculate the ROI of a Shopify app, payback period and net annual benefit vs subscription cost.
Shopify Theme Load Impact Calculator
Calculate the revenue impact of slow Shopify theme load times, 0.1s of LCP = ~0.5% CR loss.
Shipping Zone ROI Calculator
Calculate the ROI of offering shipping to additional countries, by demand, shipping cost, returns rate.
Third-Party Pixel Load Cost Calculator
Calculate the CR cost of loading third-party tracking pixels (Meta, TikTok, Pinterest) on your storefront.
CDN Bandwidth Cost Estimator
Estimate monthly CDN bandwidth costs by traffic, average page size and CDN provider rates.
Percentage Change Calculator
Calculate percentage change between two values, increase or decrease, absolute and relative.
Percentage of a Number Calculator
Calculate X% of any number, or what % one number is of another, three-way calculator.
Ratio Simplifier
Simplify any ratio to its lowest form (e.g., 1920:1080 → 16:9), using greatest common divisor.
EU VAT OSS Threshold Checker
Check if your B2C EU sales cross the €10,000 OSS threshold, triggers per-country VAT registration.
Cross-Border VAT Collection Calculator
Calculate VAT obligations on cross-border ecommerce sales, by country and registration thresholds.
Multi-Currency Psychological Pricing Calculator
Round converted prices to psychological tiers ($X.99 / £X.95 / €X,99) for each market.
Ad Frequency Cap ROI Calculator
Calculate the ROI of capping ad frequency, wasted spend at high frequency vs lost reach.
Attribution Window Impact Calculator
See how shorter attribution windows (1d vs 7d click) change reported ROAS and credited revenue.
Ad Budget Pacing Calculator
Calculate daily spend needed to hit monthly budget, factoring days elapsed and weekday weighting.
Saturation Curve Spend Calculator
Estimate diminishing returns on ad spend, find the saturation point where additional spend stops returning ROAS.
Influencer CPM Calculator
Calculate CPM (cost per thousand impressions) for influencer deals, vs paid social benchmarks.
Influencer Campaign ROI Estimator
Estimate influencer campaign ROI including content licensing, gifted product cost, and downstream conversion.
Affiliate Commission Calculator
Calculate affiliate program payout, by % commission, cookie duration, and conversion.
Referral Program ROI Calculator
Calculate referral program ROI, referrer reward + referee discount vs LTV of new customer.
UGC Cost Per Asset Calculator
Calculate true cost per UGC asset, creator fee, product seeding cost, edit time, usage rights.
Subscription Trial Conversion Calculator
Calculate trial-to-paid conversion rate and LTV impact of free trial vs paid trial pricing models.
Freemium to Paid Conversion Calculator
Calculate freemium-to-paid conversion rate, free-tier cost, and ROI of supporting free users.
Dunning Recovery ROI Calculator
Calculate recovered MRR from dunning flow (retry failed payments), typically saves 30-70% of churned MRR.
Payment Failure Impact Calculator
Calculate revenue lost to payment failures, declined cards, expired cards, BIN issues, at your scale.
Annual vs Monthly Pricing ARR Calculator
Compare ARR built from monthly vs annual pricing, annual discounts boost cash but cap LTV.
Multi-Warehouse Fulfillment Cost Optimizer
Compare single-warehouse vs multi-warehouse fulfillment costs, shipping savings vs added overhead.
Last-Mile Delivery Cost Calculator
Calculate last-mile delivery cost (final 1-15 miles), typically 53% of total parcel shipping cost.
Cold Chain Shipping Cost Calculator
Calculate refrigerated/frozen shipping cost, insulation, coolant, expedited shipping fees.
Customs Brokerage Fee Estimator
Estimate customs brokerage fees for cross-border shipments, entry fee + tariff handling + bond.
Email Deliverability Rate Calculator
Calculate inbox placement rate (delivered minus spam folder), true deliverability.
Email List Growth Rate Calculator
Calculate net email list growth rate, new subs minus unsubs and hard bounces.
Email Engagement Rate Calculator
Calculate engagement rate (opens + clicks), the metric Gmail and Outlook use for inboxing.
Email Revenue Per Recipient Calculator
Calculate Revenue Per Recipient (RPR), the gold-standard email program KPI.
Email Cost Per Conversion Calculator
Calculate true cost per email-attributed conversion, ESP cost + design + content production.
Google Quality Score Bid Savings Calculator
Calculate ad spend saved by improving Google Ads Quality Score, exact bid discount per QS point.
Lookalike Audience Size Estimator
Estimate lookalike audience size at 1%, 2%, 5%, 10% expansion, for Meta and Google.
Retargeting Audience Pool Calculator
Calculate retargeting audience size by traffic, cookie duration, and event filter (view, ATC, checkout).
Search Impression Share Deficit Calculator
Calculate missed clicks from low Search Impression Share, by IS lost to budget and IS lost to rank.
Negative Keyword Savings Calculator
Calculate ad spend saved by adding negative keywords, based on % of impressions matched.
Returnless Refund (Keep It) ROI Calculator
Calculate ROI of offering 'keep it, here's a refund' for low-value returns, vs return shipping + restock cost.
Return Policy Extension Impact Calculator
Calculate the conversion lift vs return rate increase when extending return window from 30 to 60/90/365 days.
Instant Store Credit Return ROI Calculator
Calculate ROI of offering instant store credit on returns (vs cash refund), retention impact + cost.
Returned Item: Resale vs Restock Calculator
Calculate whether to restock or resell a returned item at discount based on cost, condition, sell-through.
Loyalty Program ROI Calculator
Calculate ROI of a points-based loyalty program, redemption rate, breakage, LTV uplift vs reward cost.
Loyalty Points-to-Cash Conversion Calculator
Calculate the dollar value per point and reward redemption thresholds for your loyalty program.
Tier-Based Loyalty Program Economics
Model the economics of tier-based loyalty (Silver/Gold/Platinum), reward cost per tier and LTV uplift.
Loyalty Redemption Rate Calculator
Calculate redemption rate, % of issued points redeemed. Low rate = breakage opportunity but signals low value.
Loyalty Program Breakage Calculator
Calculate loyalty point breakage (unredeemed points), recognised as revenue or used to fund program.
Cart Abandonment Recovery Flow ROI
Calculate revenue recovered by a 3-email cart abandonment flow, typical recovery 15-25% of abandoners.
Price Anchor Effectiveness Calculator
Calculate conversion lift from showing strikethrough price next to sale price, anchoring effect.
Social Proof Conversion Lift Calculator
Calculate conversion lift from adding social proof (reviews count, recent purchase pop-ups, customer count).
Trust Badge Impact Estimator
Estimate checkout conversion lift from adding payment security badges, money-back guarantees, BBB seals.
Checkout Step Reduction ROI
Calculate revenue lift from removing steps from your checkout, each removed step typically lifts CR 5-15%.
Welcome Flow Revenue Calculator
Calculate revenue generated by a 5-email welcome series for new email subscribers.
Browse Abandonment Flow ROI
Calculate revenue from browse-abandonment emails (viewed product but no ATC), typical 1-3% conversion.
Post-Purchase Flow ROI Calculator
Calculate revenue from post-purchase upsell + replenishment flows, typical 8-15% additional revenue.
Winback Flow Revenue Calculator
Calculate revenue from winning back lapsed customers (180+ days inactive), typical 5-10% reactivation.
Birthday Flow Revenue Calculator
Calculate revenue from birthday email flow, high open rates (50-70%) and CR (10-15%) when offer is right.
Domain Authority Lift Revenue Calculator
Calculate revenue from boosting Domain Authority, DA 30 → 50 typically lifts organic traffic 2-3x.
Branded Search Volume Tracker
Track branded search volume growth, proxy for brand awareness and word-of-mouth.
SEO Content Investment ROI Calculator
Calculate ROI of producing SEO content, cost per article vs expected traffic value over 24 months.
Backlink Acquisition ROI Calculator
Calculate ROI of buying backlinks vs organic outreach, by DA gain and traffic impact.
Local Pack Presence Impact Calculator
Calculate revenue impact of appearing in Google's local 3-pack vs only organic results.
Usage-Based Pricing Calculator
Calculate revenue from usage-based pricing model vs flat-rate, by user distribution of consumption.
Seat-Based Pricing Calculator
Calculate revenue from per-seat SaaS pricing model vs flat-tier, including seat creep dynamics.
Expansion Revenue Calculator
Calculate expansion MRR (upgrades + cross-sell + seat additions), the highest-margin growth lever in SaaS.
Cohort Revenue Retention Tracker
Track revenue retention by signup cohort, see which months produce stickiest customers.
Negative Churn (Net Expansion) Calculator
Calculate negative churn, when expansion MRR exceeds churned MRR. The holy grail of SaaS retention.
Best Meeting Time Across Timezones
Find the best meeting time across multiple timezones, overlap of acceptable working hours.
Cloud Storage Cost Comparator
Compare S3, Cloudflare R2, Google Cloud Storage, Azure Blob, BackBlaze B2 storage and egress costs.
Shopify Collection Page Bloat Estimator
Estimate page weight + load time impact of large Shopify collection pages, how many products is too many.
Zero-Party Data Survey ROI Calculator
Calculate ROI of post-purchase survey for zero-party data collection (preferences, intent, demographics).
Web Push Notification Opt-In ROI Calculator
Calculate revenue from web push notification subscribers, opt-in rate, message frequency, conversion lift.
Apple/Google Wallet Pass ROI Calculator
Calculate ROI of issuing Apple Wallet / Google Pay loyalty passes, push notifications + location triggers.
PDP Video Conversion Lift Calculator
Calculate conversion lift from adding video to product detail pages, typical 30-100% PDP CR lift.
Shipping Protection ROI Calculator
Calculate revenue from offering shipping protection ($1-3 add-on), typical 30-60% attach rate.
BNPL Conversion Lift Calculator
Calculate conversion lift from offering Buy-Now-Pay-Later, typical 10-25% CR boost on AOV $100+.
One-Click Post-Purchase Upsell ROI
Calculate revenue from one-click post-purchase upsells (after order confirmed), typical 8-15% attach.
Post-Purchase Survey ROI Calculator
Calculate ROI of post-purchase 'how did you hear about us' survey for attribution data.
Wishlist Conversion ROI Calculator
Calculate revenue from wishlist feature, typical 15-25% of wishlist items eventually convert.
Inventory Carrying Cost Calculator
Calculate total carrying cost of inventory, capital, storage, insurance, obsolescence. Industry: 20-30% of inventory value.
Inventory Shrinkage Cost Calculator
Calculate cost of inventory shrinkage (theft, damage, error) as % of revenue, industry average 1.5-2%.
Inventory Obsolescence Cost Calculator
Calculate cost of obsolete/dead-stock inventory, typically 5-15% of inventory value annually.
Safety Stock Calculator
Calculate optimal safety stock level, by demand variability, lead time, and service level target.
Lead Time Demand Calculator
Calculate expected demand during supplier lead time, to set reorder points correctly.
Paid vs Organic Revenue Split Calculator
Calculate the optimal mix of paid vs organic revenue, for cashflow health and durable growth.
D2C vs Marketplace Mix Optimizer
Calculate the right mix of D2C site vs Amazon/marketplace revenue by margin, brand control, and operational complexity.
Retail vs Direct (D2C) Cost Comparator
Compare wholesale-to-retail vs direct-to-consumer economics, gross margin, CAC, fulfillment, support cost.
Channel Conflict Pricing Calculator
Calculate MAP (minimum advertised price) and channel pricing to avoid retailer-direct conflict.
Amazon vs Shopify Margin Comparator
Compare net margin on same SKU sold via Amazon FBA vs your Shopify store, referral, FBA, processing all factored.
Instagram Carousel Slide Character Planner
Plan carousel slide copy by slide count and characters per slide, optimal text density per slide for IG.
LinkedIn Carousel PDF Page Planner
Plan LinkedIn document carousel pages, page count, aspect ratio, text density per page.
Social Media Engagement Rate Calculator
Calculate engagement rate ((likes + comments + saves + shares) / followers × 100), the standard social-media benchmark.
Social Media Reach Rate Calculator
Calculate reach rate (unique reach / followers × 100), how widely your posts spread beyond your follower base.
Follower Growth Rate Calculator
Calculate month-over-month and year-over-year follower growth rate, net of churn (lost followers).
Influencer Engagement Audit Calculator
Audit influencer authenticity by engagement-to-follower ratio, flags suspicious accounts with bought followers.
Cost Per Follower Calculator
Calculate cost per follower from paid social acquisition (Meta, TikTok, X ads). Benchmarks $0.50-$5 typical.
Cost Per Engagement Calculator
Calculate cost per engagement (CPE), paid ad spend ÷ engagements (likes + comments + shares + saves).
Unit economics
CM1 → CM4, LTV, CAC, payback, contribution margin and the other D2C profitability metrics investors actually ask for.
30 tools
Customer LTV Calculator
Calculate Customer Lifetime Value from AOV, purchase frequency, customer lifespan and gross margin.
Customer Acquisition Cost (CAC) Calculator
Work out what each new customer truly costs you, across paid ads, agencies, tools and creative.
LTV : CAC Ratio Calculator
Is your business sustainable? Get your LTV:CAC ratio and see where you sit vs the 3:1 D2C benchmark.
CAC Payback Period Calculator
How many months until a customer earns back what you spent acquiring them? Critical for cash-strapped D2C.
MER (Marketing Efficiency Ratio) Calculator
Blended ROAS across every channel, total revenue ÷ total marketing spend. The metric iOS 14.5 made essential.
Contribution Margin 1 (CM1) Calculator
Calculate Contribution Margin 1, revenue minus COGS, per order or per unit. The first tier of D2C profitability.
Contribution Margin 2 (CM2) Calculator
Calculate Contribution Margin 2, CM1 minus variable fulfillment, packaging, payment processing, and returns.
Contribution Margin 3 (CM3) Calculator
Calculate Contribution Margin 3, CM2 minus marketing/CAC. The true per-order profit after acquiring the customer.
Contribution Margin 4 (CM4) Calculator
Calculate Contribution Margin 4, CM3 minus retention spend (loyalty, email/SMS, post-purchase ops).
Contribution Margin Waterfall (CM1 → CM4)
Visualise contribution margin tiers in one view, 100% revenue → CM1 → CM2 → CM3 → CM4, the canonical D2C investor chart.
Blended vs Paid CAC Calculator
Compare blended CAC (incl. organic) vs paid-only CAC, the gap shows your organic acquisition efficiency.
Fully-Loaded CAC Calculator
Calculate the true Fully-Loaded CAC, paid spend + marketing salaries + tools (Klaviyo, Triple Whale) + freelancers + creative.
First-Order Profitability Calculator
Calculate profit on the first transaction alone, most D2C brands have negative first-order profitability and only recover via repeat purchase.
Discounted LTV (DCF) Calculator
Calculate present value of customer LTV using a discount rate (WACC), the format investors expect for fundraising.
Cohort Payback Period Calculator
Calculate the months until each acquisition cohort crosses CAC break-even, by month-over-month contribution.
Order Frequency Calculator
Calculate average purchases per customer per year, the missing piece between AOV and LTV.
Days Between Purchases Calculator
Calculate average days from first → second purchase, second → third, etc, drives replenishment email cadence.
Customer Concentration Risk Calculator
Calculate % of revenue from your top 10/20/50 customers, red flag if any single customer is >10% of revenue (investor concern).
Refund-Adjusted AOV Calculator
Calculate net AOV after refunds and returns, typically 15-25% below reported AOV in apparel/footwear D2C.
Magic Number Calculator (SaaS)
Calculate the SaaS Magic Number, (Δ new ARR × 4) / prior-quarter S&M spend. ≥0.75 = healthy growth efficiency.
SaaS Quick Ratio Calculator
Calculate the SaaS Quick Ratio, (new MRR + expansion) / (churn + contraction). Above 4 = healthy growth; below 1 = shrinking.
Burn Multiple Calculator
Calculate Burn Multiple, net burn / net new ARR. Bessemer's efficiency benchmark for SaaS. <1 = exceptional, 1-2 = good, 3+ = concerning.
Variable Cost Ratio Calculator
Calculate variable costs as % of revenue, the metric that determines scalability and operating leverage.
Net Revenue Per Customer Calculator
Calculate net revenue per customer after discounts, refunds, returns, and chargebacks, the honest number.
AOV Growth Lever Model
Model AOV uplift from common D2C tactics, free-shipping threshold, bundles, BOGO, upsell modal, gift-with-purchase.
Cohort LTV at 30/60/90/180/365 Days
Calculate cumulative LTV at 30, 60, 90, 180, and 365 days post-acquisition, the granular cohort LTV most operators don't track.
Channel-Attributed CAC Comparator
Compare CAC across Meta, Google, TikTok, influencer, affiliate, organic, side-by-side with retention adjustments.
Subscription First-Order vs Renewal Margin
Compare margin on first subscription order vs renewals, first order usually loses money (CAC + discount), renewals are pure profit.
Customer Half-Life Calculator
Calculate the number of months until 50% of a cohort churns, a faster-to-grok alternative to monthly churn %.
Retention-Adjusted CAC Payback
Calculate true CAC payback factoring real retention curves, not the optimistic 'all customers stay' assumption.
Ecommerce & Shopify
Practical browser-only tools for Shopify, WooCommerce, Amazon, Etsy, eBay and other ecommerce platforms, fees, returns, inventory.
52 tools
True Profit Per Order Calculator
Strip COGS, shipping, payment fees, returns and ad cost from your AOV to see what each order really earns.
Break-Even Units Calculator
How many units do you need to sell each month to cover fixed costs? Set runway targets, not vibes.
Markup vs Margin Calculator
The #1 pricing confusion. Convert between markup and margin both ways, with the actual price math.
Free Shipping Threshold Calculator
Find the cart value where free shipping lifts AOV more than it costs you in margin.
Shopify Fees Calculator
What Shopify (plus Shopify Payments or a third-party gateway) actually skims off every order, on every plan.
Email Marketing Revenue Calculator
Project monthly revenue from your list size, open rate, click rate, conversion rate and AOV.
A/B Test Sample Size Calculator
How many visitors per variant before your CRO test reaches statistical significance?
Conversion Rate Calculator
Sessions, conversions and revenue, get CR, RPV and what a small uplift would actually do to revenue.
Average Order Value (AOV) Calculator
Calculate AOV, see what a 10% lift means in monthly revenue, and benchmark against your category.
Klaviyo Flow Revenue Estimator
Project monthly revenue from your Klaviyo flows, welcome, browse abandon, cart abandon, post-purchase.
Net Promoter Score (NPS) Calculator
Calculate Net Promoter Score from your survey responses, promoters minus detractors as a percentage.
CSAT Calculator
Calculate Customer Satisfaction Score (CSAT) from your survey responses, satisfied as a percentage of total.
Customer Effort Score (CES) Calculator
Calculate Customer Effort Score from survey responses on the 1-7 ease scale.
Net Revenue Retention (NRR) Calculator
Calculate Net Revenue Retention, the SaaS / subscription metric for cohort revenue growth or shrinkage.
Gross Revenue Retention (GRR) Calculator
Calculate Gross Revenue Retention, cohort revenue retention before expansion is added back.
Burn Rate Calculator
Calculate gross and net burn rate from your monthly expenses and revenue.
Cash Runway Calculator
Calculate how many months of runway you have at current burn, and what reduces / extends it.
Revenue Per Visitor (RPV) Calculator
Calculate Revenue Per Visitor, the cleanest single CRO metric (revenue / sessions).
Gross Margin Calculator (Per SKU)
Calculate gross margin per SKU from price and unit cost, with margin tier guidance.
Contribution Margin Per Unit Calculator
Calculate contribution margin per unit, price minus all variable costs (COGS + shipping + fees).
Economic Order Quantity (EOQ) Calculator
Calculate the order quantity that minimises combined ordering + holding costs.
ABC Inventory Analysis Tool
Bracket SKUs into A/B/C tiers by revenue contribution (80/15/5 Pareto split).
Sell-Through Rate Calculator
Calculate sell-through rate, units sold ÷ units received, the core retail inventory KPI.
Days of Supply Calculator
Calculate how many days of inventory you have on hand at current sales velocity.
Stock Days Remaining Calculator
Days until SKU stocks out at current velocity, paired with lead time tells you when to reorder.
Apparel Return Rate Impact Calculator
Apparel-specific return-rate cost calculator. Apparel runs 20-30% returns, model the real margin hit.
Beauty Replenishment Cycle Calculator
Calculate the expected replenishment cycle for beauty / skincare products to plan email cadence.
Supplements Cost Per Serving Calculator
Calculate cost per serving for supplement products, by jar price and servings per container.
Food & Beverage Margin Per Unit Calculator
Calculate per-unit margin for food & beverage products including spoilage and freight.
Pet Food Cost Per Day Calculator
Calculate the cost per day to feed a pet on your product vs competitors. Standard pet ecommerce comparison metric.
Jewelry Markup Calculator
Calculate jewelry markup including metal cost (gold/silver), stones, labour and overhead.
Furniture Freight Cost Calculator
Calculate LTL freight cost for furniture / large-item D2C, class, weight, distance.
Electronics Warranty Cost Modeler
Model the cost of offering 1/2/3-year warranty on electronics, by claim rate and unit cost.
Subscription Churn Cohort Visualizer
Visualise monthly subscriber cohort retention curves to spot churn-cliff months.
Pause vs Cancel Subscription Saver Calculator
Calculate the LTV impact of offering pause as a retention option vs forcing cancel.
Annual Prepay Discount Calculator
Find the discount % at which annual prepay maximises 12-month subscriber LTV.
MRR Movements Calculator
Track MRR movements: new + expansion - contraction - churn = net new MRR.
Subscription Box Variety Mix Calculator
Plan the right variety mix for subscription box renewal, how many unique items per box.
Discount Impact Calculator
See how much margin a 10/20/30% discount eats, and how many extra units you'd need to break even.
Bundle Price Calculator
Build a 2–5 item bundle, set a discount, see margin per bundle vs selling the items individually.
BOGO / Multi-Buy Calculator
Model BOGO, BOGO-50, Buy 2 Get 1 Free and 'buy 3 save 15%' to see true effective margin.
Wholesale Pricing Calculator
Set wholesale, MSRP and your D2C price together, make sure margins work at every step of distribution.
Repeat Purchase Rate Calculator
What % of customers buy from you again? The retention metric that quietly determines LTV.
Cart Abandonment Cost Calculator
How much revenue evaporates in your cart and checkout every month? See it in real dollars.
Refund Rate Impact Calculator
What does your refund/return rate really cost you, after re-shipping, restocking and unsellable returns?
Subscription Churn Calculator
Project subscriber count, MRR and LTV from monthly churn, and what cutting churn by 1pp would do.
Shipping Cost Estimator
Rough domestic + international shipping costs by weight and zone, plus margin impact per order.
Inventory Turnover Calculator
How many times did you sell through your inventory this year? Annual turnover + days of inventory.
Reorder Point Calculator
When to reorder a SKU, accounting for lead time, sales velocity and a safety-stock buffer.
Cash Conversion Cycle Calculator
How many days between paying a supplier and getting cash from a customer, the lifeblood metric for bootstrapped D2C.
Stockout Cost Calculator
What does running out of a bestseller actually cost, in lost revenue and lasting algorithm damage?
RTO (Return To Origin) Cost Calculator
For COD-heavy markets, what every refused / undelivered order really costs in shipping, packaging and rework.
Previewers
Preview how your titles, descriptions, snippets, OG images and social cards will render in Google, Meta, X, LinkedIn and ads.
9 tools
Google Shopping Ad Preview
See how your product card will actually look in Google Shopping, before it goes live.
Google SERP Snippet Preview
Type a title, description and URL, see exactly how your result renders in Google search.
Open Graph Share Card Preview
Mock how your share card renders on Facebook, LinkedIn, Slack and Discord, side by side.
X / Twitter Card Preview
Generate and preview Twitter Card markup, summary, summary_large_image and player types.
Google AI Overviews Snippet Preview
See how your product page content might surface in Google's AI Overviews answer card.
ChatGPT Shopping Card Preview
Mock how your product card renders inside ChatGPT's shopping experience.
Perplexity Shop Card Preview
Preview how your product card would render in Perplexity's Shop experience.
Meta Catalog Card Preview
Preview how your product looks on Instagram Shop and Facebook Marketplace before publishing the catalog.
Instagram Visual Feed Planner (3×N Grid)
Plan your Instagram grid by uploading or queuing up to 18 posts, preview the 3-column feed before publishing.
Converters
Convert feeds and formats between Google Shopping, Meta Catalogs, TikTok Shop and 200+ other channels, plus CSV/JSON/XML/YAML.
55 tools
WebP & AVIF Converter
Convert JPG / PNG to WebP for 25-35% smaller file size, without leaving your browser.
HTML Minifier
Strip whitespace, comments and unnecessary tags from HTML. Reduces file size 20-40%.
CSS Minifier
Strip whitespace and comments from CSS for production deployment.
JSON Minifier / Prettifier
Minify or pretty-print JSON for production or debugging.
HEX / RGB / HSL Color Converter
Convert between HEX, RGB, HSL and CSS color values, with live preview.
URL Encoder / Decoder
Encode or decode URLs for safe inclusion in query parameters, redirect chains and tracking links.
HTML Entity Encoder / Decoder
Encode or decode HTML entities (e.g. & → &, > → >) for safe HTML output.
Base64 Encoder / Decoder
Encode or decode Base64 strings, including UTF-8 safe modes for non-ASCII content.
Markdown to HTML Converter
Convert Markdown to HTML for blog posts, README files and product descriptions.
Shopify CSV → Google Shopping Feed Converter
Drop your Shopify product export and download a Google Merchant Centre–ready CSV or XML feed.
Google Shopping → Meta Catalog Converter
Take your Google Shopping feed (CSV or XML) and convert it to Meta's catalog CSV format.
CSV → XML Converter
Paste or drop a CSV, pick a row tag, get clean valid XML, common for product-feed prep.
XML → CSV Converter
Paste or drop an XML feed, get a flat CSV ready to open in Excel or Google Sheets.
CSV → JSON Converter
Paste or drop a CSV and get clean JSON, array of objects, ready to drop into an API call.
JSON → CSV Converter
Paste a JSON array of objects, get a clean CSV with keys auto-detected as columns.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase and snake_case.
Remove Line Breaks Tool
Strip line breaks, double spaces and extra whitespace from text, instantly.
JSON Formatter & Beautifier
Format, validate and beautify any JSON instantly, no data leaves your browser.
JSON Minifier
Minify JSON by stripping whitespace, see savings in bytes, instantly in-browser.
CSV Deduplicator
Remove duplicate rows from a CSV file, pick which column to dedupe on.
YAML to JSON Converter
Convert YAML to valid JSON instantly, no install, no upload, no signup.
Hex to RGB Color Converter
Convert hex color codes (#FFFFFF) to RGB and HSL, instantly with live color preview.
RGB to Hex Color Converter
Convert RGB color values to hex codes, instantly with live color preview.
HSL to Hex Color Converter
Convert HSL color values to hex codes, instantly with live preview.
Markdown to HTML Converter
Convert Markdown to clean HTML instantly, with live preview, copy and download.
Pixel to REM/EM Converter
Convert pixels to REM/EM and back, at any base font size (default 16px).
SVG to Data URI Encoder
Convert SVG markup to a data URI for inline embedding in CSS background-image or HTML img src.
HTML Email to Plain Text Converter
Convert HTML email to clean plain-text version, required for multipart MIME deliverability.
CSV Column Extractor
Extract specific columns from a CSV by name, drop the rest, download cleaned file.
CSV Column Renamer
Rename CSV columns, useful for mapping a feed's column names to a channel's required names.
CSV Row Filter
Filter CSV rows by column value, keep matching, exclude matching, regex supported.
CSV Find and Replace
Find and replace text within a specific CSV column, regex supported, case-insensitive option.
CSV to TSV Converter
Convert CSV to TSV (tab-separated values), useful for spreadsheet imports and data warehouses.
XML Prettifier
Format and indent XML, for sitemap, RSS, product feed inspection.
HTML Prettifier
Format and indent HTML with proper structure, useful for inspecting minified pages.
SQL Formatter
Format SQL queries with proper indentation and uppercase keywords for readability.
LTR to RTL CSS Converter
Convert LTR CSS to RTL by mirroring left/right properties, for Arabic, Hebrew, Persian, Urdu sites.
Multi-Timezone Converter
Convert a time across multiple timezones simultaneously, for global team meetings and campaign launches.
Unix Timestamp Converter
Convert Unix timestamps (seconds or milliseconds) to human dates and back.
HTML to Plain Text Converter
Convert any HTML to clean plain text, strip tags, preserve structure, keep paragraphs.
CSV Merger / Concatenator
Merge multiple CSV blobs into one, by column union or strict header match.
Text Sorter (Alphabetical / Numeric)
Sort lines of text alphabetically, numerically, by length, or reverse, case-sensitive optional.
Duplicate Line Remover
Remove duplicate lines from text, case-sensitive or insensitive, with whitespace trim option.
Bulk Text Replacer
Apply multiple find-and-replace operations to text in one pass, regex supported.
Tweet Thread Splitter
Split long-form text into Twitter thread chunks (280 char each), with numbering 1/n, 2/n.
Hashtag CamelCase Converter
Convert lowercase hashtags to CamelCase (#bestdayever → #BestDayEver) so screen readers parse each word separately.
Hashtag Bulk Formatter
Paste a list of words or phrases → output Instagram-ready hashtag block (max 30, comma or space separated).
Hashtag Stripper
Remove # symbols from hashtag text, useful when repurposing IG captions for blog posts or email.
Hashtag Extractor from Text
Extract all hashtags from a caption or block of text. Returns deduplicated list with counts.
@ Mention Extractor
Extract all @username mentions from a caption or block of text. Returns deduplicated list.
URL Extractor from Text
Extract all URLs from any block of text, captions, emails, documents. Returns deduplicated clickable list.
Instagram Caption Line Break Preserver
Add invisible Unicode characters to force Instagram to preserve line breaks in captions and bios.
Post-to-Story Image Converter
Convert a square (1080×1080) Instagram post into a 1080×1920 Story-sized image with padding/border.
Instagram Square Cropper
Crop any image to a perfect 1:1 square for Instagram. Pick centre crop or drag to reposition.
Carousel Image Cutter (10-Slide Splitter)
Split a tall panoramic image into 10 perfect Instagram carousel slides, for stitched-image carousels.
Auditors
Audit product feeds, websites, schemas and pricing pages against best-practice checklists used by D2C and ecommerce teams.
28 tools
Schema Markup & Rich Results Checker
Paste a page URL or HTML and validate every JSON-LD schema block against Google's Rich Results requirements.
Product Feed Auditor
Drop a CSV, TSV or XML product feed and get an instant quality report, titles, GTINs, images, categories, prices.
Product Feed Diff Tool
Drop yesterday's and today's product feed, see exactly which SKUs were added, removed, or had price/availability changes.
AI Crawler robots.txt Audit
Paste your robots.txt to see which AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended) you're allowing or blocking.
Text Diff Checker
Compare two blocks of text and highlight what changed, line by line, in-browser.
UTM Link Tester & Parser
Parse any URL with UTM parameters and see exactly how it appears in GA4 source/medium/campaign.
Flesch Reading Ease Score Calculator
Calculate Flesch Reading Ease score and grade level for any text, score 0 (PhD) to 100 (5th grade).
Keyword Density Checker
Check keyword frequency and density in any content, words, 2-word phrases, 3-word phrases.
Email Spam Trigger Word Checker
Scan email subject lines and copy for known spam trigger words that lower deliverability.
Email Image-to-Text Ratio Checker
Check email image-to-text ratio, Gmail/Outlook flag image-heavy emails as promotional or spam.
Popup Conversion Rate Benchmark Tool
Benchmark your email/SMS popup conversion rate against vertical-specific medians.
CSV / Text Line Counter
Count lines and non-empty lines in any text or CSV file, instantly in-browser.
DKIM Record Parser
Parse a DKIM TXT record into its tags (v, k, p), verify selector and key.
Internal Link Anchor Text Analyser
Paste internal links + anchor text. See distribution: exact match, partial, branded, generic ('click here').
Redirect Chain Detector
Paste a list of redirects and find chains (A→B→C) that hurt SEO and load times.
Noindex Page Schema Conflict Checker
Detect pages with structured data on noindex/canonicalised pages, wasted markup that won't appear in SERPs.
Password Strength Checker
Check password strength in-browser, entropy, common-password match, character class diversity.
WCAG 2.1 AA Checklist Generator
Generate a WCAG 2.1 AA accessibility checklist, perceivable, operable, understandable, robust principles.
Alt Text Coverage Checker
Check % of images with alt text in any HTML, required for accessibility and Google Image SEO.
Form Label Association Checker
Check that every form input has an associated <label> (via for/id or wrapping), accessibility requirement.
Translation Readiness Checker
Scan text content for translation pitfalls, concatenated strings, untranslated dates, currency hard-codes.
iOS App Keyword Density Checker
Audit your iOS App Store keyword field (100 chars) for density, repetition, and discoverability.
Campaign ROAS Tier Comparator
Compare multiple campaigns side-by-side by ROAS, identify which to scale, hold, or kill.
Duty Drawback Eligibility Checker
Check if your imported goods qualify for US duty drawback (refund of duties paid on items re-exported).
Broken Link Text Detector
Find URLs in text that have obvious format errors (no protocol, double slashes, broken patterns).
Text Case Distribution Statistics
Analyse case distribution in text, UPPERCASE / lowercase / Title / sentence / mixed words.
Social Media Aspect Ratio + Safe Zone Checker
Check an image against the aspect ratio and safe zones for IG, TikTok, YouTube, Reels, flags off-target dimensions.
Social Media Image Format + Dimension Checklist
Checklist tool, paste your asset list, get a checklist of required dimensions for each platform/format.
Generators
Generate schema.org JSON-LD, robots.txt, sitemaps, OG images, return-policy markup and other technical SEO assets.
107 tools
Image Compressor (JPG / PNG / WebP)
Compress product images in your browser, JPG, PNG and WebP, with quality slider.
Bulk Product Image Resizer
Resize product images for Shopify, Google Shopping, Meta, TikTok and Amazon in one step.
Favicon Generator (Multi-Size + Manifest)
Generate favicon, all PNG sizes, Apple touch icon and PWA manifest from a single source image.
OG Image Generator (1200×630 Templated)
Type a title, pick a template, get a 1200×630 OG image ready for Facebook, LinkedIn and X.
EXIF Data Stripper
Strip GPS, camera and personal metadata from images before publishing.
Apple & PWA Icon Generator
Generate Apple touch icons and PWA app icons in all sizes iOS, Android and Chrome need.
QR Code Generator
Generate QR codes for URLs, vCards, Wi-Fi or plain text, all client-side, no upload.
Password Generator
Generate secure random passwords with configurable length, character set and complexity.
Ecommerce Lorem Ipsum Generator
Generate ecommerce-themed placeholder text (product descriptions, reviews, store about pages).
Recipe Schema Generator
Generate schema.org/Recipe JSON-LD for food blogs and food brands, for Google Recipe rich result.
Course Schema Generator
Generate schema.org/Course JSON-LD for online courses, workshops and training programs.
JobPosting Schema Generator
Generate schema.org/JobPosting JSON-LD to appear in Google for Jobs search.
SoftwareApplication Schema Generator
Generate schema.org/SoftwareApplication JSON-LD for apps, SaaS, and downloadable software.
Dataset Schema Generator
Generate schema.org/Dataset JSON-LD for downloadable datasets and reports.
Hreflang Tag Generator
Generate hreflang link tags for multi-country / multi-language ecommerce sites.
URL Slug Generator & Cleaner
Convert messy titles to clean, SEO-friendly URL slugs, lowercase, hyphenated, no special chars.
Review Schema Generator
Generate schema.org/Review JSON-LD for product reviews and editorial reviews.
AggregateRating Schema Generator
Generate AggregateRating JSON-LD for products, services and articles with reviews.
HowTo Schema Generator
Generate step-by-step HowTo JSON-LD that may trigger Google's HowTo rich result.
VideoObject Schema Generator
Generate VideoObject JSON-LD for product videos, tutorials and explainer content.
LocalBusiness Schema Generator
Generate LocalBusiness JSON-LD with address, hours, geo and contact for retail locations.
Event Schema Generator
Generate Event JSON-LD for product launches, sales, drops and virtual events.
Article Schema Generator
Generate Article / BlogPosting JSON-LD for blog posts, guides and news content.
WebSite + Sitelinks Searchbox Schema
Generate WebSite JSON-LD with Sitelinks Searchbox to surface a search bar directly in Google SERP.
llms-full.txt Generator (with Product Data)
Extend your llms.txt with a full product-catalogue payload for AI assistants to ingest.
AI Brand Mention Prompt Generator
Generate the exact prompts to test whether ChatGPT, Claude, Perplexity and Gemini cite your brand.
UTM Link Builder
Build, validate and bulk-generate UTM-tagged URLs for every paid, email and social campaign you run.
Product Schema (JSON-LD) Generator
Fill in the form, copy schema.org/Product JSON-LD ready to drop into your product page.
FAQ Schema (JSON-LD) Generator
Add unlimited Q&A pairs, copy ready-to-paste FAQ JSON-LD that triggers Google's FAQ rich result.
Breadcrumb Schema Generator
Map your page hierarchy and copy valid BreadcrumbList JSON-LD that Google uses in the SERP.
Organization Schema Generator
Generate Organization JSON-LD with logo, social profiles and contact info for your homepage.
Ecommerce robots.txt Generator
Generate a robots.txt with ecommerce-aware defaults, block faceted filters, allow checkout assets, manage AI crawlers.
llms.txt Generator
Build an llms.txt, the emerging standard for telling AI assistants what's on your site and how to use it.
Bulk SKU Generator
Generate up to 1,000 SKUs from a pattern with category, color, size and sequence tokens.
Meta Tag & OG Generator
Generate title, meta description, Open Graph and Twitter Card tags with live SERP and social preview.
Sitemap.xml Generator
Paste your URLs, get a valid sitemap.xml with priorities, change frequency and last-modified.
Lorem Ipsum Generator
Generate placeholder lorem ipsum text by words, sentences or paragraphs, instantly.
Color Palette Generator
Generate harmonious color palettes from a base color, complementary, triadic, analogous.
Sale Countdown HTML Snippet Generator
Generate a sale-countdown HTML/JS snippet to embed in your storefront, ticks live, no library.
Canonical Tag Generator
Generate a properly-formatted <link rel=canonical> tag for any URL, instantly.
Meta Robots Tag Generator
Generate <meta name=robots> tag, pick index/noindex, follow/nofollow, archive, snippet rules.
Person Schema Generator
Generate schema.org Person markup for author bios, founder pages, expert profiles, critical for E-E-A-T.
Book Schema Generator
Generate schema.org Book markup with ISBN, author, edition for bookstores and publishers.
Movie Schema Generator
Generate schema.org Movie markup with director, actors, runtime, rating.
Place Schema Generator
Generate schema.org Place markup for stores, venues, landmarks with address and geo coordinates.
Service Schema Generator
Generate schema.org Service markup for agencies, consultants, freelancers and service businesses.
CSS Box Shadow Generator
Generate CSS box-shadow with live preview, offset, blur, spread, color, inset.
CSS Gradient Generator
Generate linear and radial CSS gradients with live preview, multiple stops, any direction.
CSS Border Radius Generator
Generate CSS border-radius, uniform, individual corners, or elliptical, with live preview.
CSS Cubic Bezier Generator
Generate CSS cubic-bezier() easing functions, visual editor with timing preview.
CSS Text Shadow Generator
Generate CSS text-shadow with live preview, offset, blur, color, multiple shadows.
Mailto Link Generator
Generate mailto: links with subject, body, cc, bcc, properly URL-encoded.
DMARC Record Generator
Generate a DMARC TXT record (policy, reporting, alignment), for email deliverability and brand protection.
SPF Record Generator
Generate an SPF TXT record listing authorised senders, for email deliverability.
BIMI Record Generator
Generate a BIMI (Brand Indicators for Message Identification) TXT record, for branded sender logos in inbox.
Content Pillar + Cluster Planner
Plan a hub-and-spoke content cluster: 1 pillar page + supporting cluster topics with internal-link map.
CSS Clip Path Generator
Generate CSS clip-path polygons visually, for image cutouts, shapes, masking.
CSS Glassmorphism Generator
Generate frosted-glass (glassmorphism) CSS with backdrop-filter, opacity, blur, live preview.
CSS Gradient Text Generator
Generate CSS gradient text (background-clip: text), for hero headlines, brand emphasis.
CSS Aspect Ratio Generator
Generate CSS aspect-ratio rules for responsive media containers, modern property + fallback.
CSS Grid Layout Generator
Generate CSS Grid layouts visually, set rows, columns, gaps. Copy the grid CSS.
UUID v4 Generator
Generate cryptographically-strong UUID v4 (random) identifiers, bulk supported.
Brand Schema Generator
Generate schema.org Brand markup for branded products and brand pages.
Order Schema Generator
Generate schema.org Order markup for order confirmation emails (Gmail markup, Schema.org for email).
ItemList Schema Generator
Generate schema.org ItemList markup for category, collection, and ranked listicle pages.
Offer / Promotion Schema Generator
Generate schema.org Offer with priceValidUntil for time-limited promotions and sales.
MerchantReturnPolicy Schema Generator
Generate schema.org MerchantReturnPolicy markup, required by GMC for free product listings.
FAQ HTML Snippet Generator
Generate accessible HTML FAQ markup with native <details><summary>, no JavaScript needed.
Mailchimp CTA Button HTML Generator
Generate bulletproof email CTA button HTML (table-based) that renders consistently across Gmail, Outlook, Apple Mail.
CSS Multi-Layer Shadow Stack Generator
Generate stacked CSS box-shadows for realistic depth (Material Design style).
CSS Loader / Spinner Generator
Generate CSS-only loading spinners, multiple styles, customisable colors and size.
CSS Keyframe Animation Generator
Generate CSS @keyframes animations, fade, slide, bounce, pulse, with timing controls.
CSS Button Variant Generator
Generate a full button system (primary, secondary, ghost, destructive) with hover/focus states.
CSS Form Input Styler
Style form inputs (text, select, textarea, checkbox) with consistent CSS, accessible focus states.
Email Signature HTML Generator
Generate professional email signature HTML, name, title, company, photo, social links.
Terms of Service Template Generator
Generate a starter Terms of Service template for ecommerce sites, customisable by company, jurisdiction, returns policy.
Bold Text Generator (𝐁𝐨𝐥𝐝 Unicode)
Generate Unicode bold text for Twitter/X, Facebook, Instagram bio, LinkedIn, platforms that don't support native rich text.
Italic Text Generator (𝐼𝑡𝑎𝑙𝑖𝑐 Unicode)
Generate Unicode italic text for social platforms, the standard workaround when native italic isn't supported.
Bold Italic Text Generator
Generate combined bold + italic Unicode text, the strongest emphasis style available without native rich text.
Strikethrough Text Generator
Generate s̶t̶r̶i̶k̶e̶t̶h̶r̶o̶u̶g̶h̶ text using Unicode combining characters. Works in X, Discord, Slack.
Underline Text Generator
Generate u̲n̲d̲e̲r̲l̲i̲n̲e̲d̲ text using Unicode combining characters. Best on X and Discord.
Small Caps Text Generator
Generate sᴍᴀʟʟ ᴄᴀᴘs using IPA Unicode letters, typographic emphasis without breaking flow.
Cursive Text Generator (𝓒𝓾𝓻𝓼𝓲𝓿𝓮 Script)
Generate elegant 𝓬𝓾𝓻𝓼𝓲𝓿𝓮 script text for IG bios, quote graphics, and stylistic emphasis.
Monospace Text Generator
Generate 𝙼𝚘𝚗𝚘𝚜𝚙𝚊𝚌𝚎 text for inline code references in social posts. Even letter spacing.
Bubble Text Generator (Ⓑⓤⓑⓑⓛⓔ)
Generate Ⓑⓤⓑⓑⓛⓔ text, each letter inside a circle. Uses Enclosed Alphanumerics Unicode block.
Square Text Generator
Generate 🅂🅀🅄🄰🅁🄴 text, each letter inside a square outline. Uses Unicode Squared Latin Letters.
Upside Down Text Generator
Generate uʍop ǝpᴉsdn text using Unicode lookalike characters. The result reads when physically rotated.
Reverse Text Generator
Reverse character order in text, letters stay upright but appear in mirror sequence. Different from upside-down.
Spaced Out Text Generator
Generate s p a c e d o u t text by inserting a space between every character. Popular in IG bios and quote cards.
Fancy Text Generator (All Styles)
Generate fancy 𝓯𝓪𝓷𝓬𝔂 text in multiple Unicode styles, the all-in-one entry point for stylised social text.
Branded Hashtag Combinatorial Generator
Generate branded hashtag candidates by combining your brand name with theme words (algorithmic, not AI).
YouTube Embed Code Generator
Generate YouTube iframe embed code with autoplay, mute, start time options. Works with regular videos, Shorts, and live streams.
Twitter / X Embed Code Generator
Generate Twitter/X blockquote embed code with optional dark theme, render any public tweet on your site.
Instagram Post Embed Code Generator
Generate Instagram post/Reel/IGTV embed code using the official blockquote + embed.js pattern.
TikTok Video Embed Code Generator
Generate TikTok video embed code using the official blockquote + embed.js script. Parses video ID from URL.
Facebook Post Embed Code Generator
Generate Facebook post embed code using the official fb-root + SDK pattern. Works for any public post.
Spotify Embed Code Generator
Generate Spotify iframe embed for tracks, albums, playlists, and episodes. Compact or full-size.
YouTube Timestamp Link Builder
Build YouTube deep-links that jump to a specific timestamp (h/m/s), for video citations and chapter shares.
WhatsApp Click-to-Chat Link Builder
Generate wa.me click-to-chat links with optional pre-filled message, for support buttons and bio links.
Instagram Reels Script Template Generator
Generate Reels script templates from proven structures, hook, value, CTA, for the 7-15 second optimal length.
Twitter / X Poll Template Generator
Generate poll question + answer templates for X/Twitter polls, proven question structures by goal.
Quote Card Image Generator
Generate branded quote card images from text, for IG, LinkedIn, X. Pick colours, fonts, dimensions.
Instagram Story Countdown HTML Embed
Generate a countdown HTML embed sized for Instagram Story (1080×1920), for landing pages linked from Stories.
Twitter / X Post Screenshot Generator
Generate a styled screenshot mockup of a Twitter/X post, for embeds, blog posts, presentation slides.
Screenshot Background Maker
Add a gradient or solid background behind any screenshot, for landing pages, social posts, presentation slides.
YouTube Thumbnail Mockup Generator
Build a YouTube thumbnail at 1280×720 with text overlay, colour, and contrast preview against feed.
Bio Link Page HTML Generator (Linktree Alternative)
Generate a self-hosted single-page link-in-bio site, no Linktree, no subscription, your own domain.
Reference
Lookup tables and reference data, GMC error codes, country VAT rates, GS1 check-digit rules, shipping zones and more.
33 tools
Google Product Category Search
Search Google's 5,400+ product taxonomy and copy the full category path or numeric ID in one click.
TCPA / A2P 10DLC Compliance Checklist
Step-by-step checklist for SMS marketing compliance, TCPA opt-ins, A2P 10DLC registration, STOP handling.
Welcome Email Series Planner
Plan your welcome email cadence, subject, content focus and timing for 3-7 email sequence.
Email Send Time Optimiser
Recommend the best send time for your audience by geo, day of week and content type.
Google Merchant Centre Error Code Lookup
Paste a Google Merchant Centre disapproval code or message to see a plain-English fix.
Google Shopping Custom Label Planner
Plan how to use Google Shopping's 5 custom_label slots for Performance Max segmentation.
Word Counter
Count words, characters, sentences and reading time for any text, instantly in-browser.
Character Counter
Count characters with or without spaces, plus byte length for UTF-8 encoded text.
Ecommerce Holiday Calendar 2026
All 2026 ecommerce holidays, BFCM, Prime Day, Memorial Day, Mother's Day, etc, with dates and planning notes.
ISO Country Code Lookup
Look up ISO 3166-1 country codes, alpha-2, alpha-3, numeric, for all 249 countries.
ISO Language Code Lookup
Look up ISO 639-1 language codes for hreflang, localisation, content tagging.
Currency Symbol & Code Lookup
Look up ISO 4217 currency codes and symbols for 180+ currencies, for ecommerce, accounting, feeds.
Country IBAN Format Lookup
Look up IBAN format by country, length, structure, example, for European payment integration.
Country Postal Code Format Lookup
Look up postal code format by country for international shipping address validation.
US State Sales Tax Rate Lookup
Look up state-level US sales tax rates by state, including average local rates.
Marketplace Facilitator Tax Map
See which US states have Marketplace Facilitator Laws, Amazon, eBay, Etsy collect on your behalf.
US Sales Tax Nexus Threshold Tracker
See economic nexus thresholds for sales tax registration by US state (typically $100k sales or 200 txns).
Cross-Border Shipping Restrictions Lookup
Look up common product categories restricted or prohibited from cross-border shipping by destination country.
App Store Screenshot Resolution Lookup
Look up required screenshot resolutions for iOS App Store and Google Play by device.
App Icon Resolution Calculator
Calculate all required app icon resolutions for iOS, Android, and PWA from a single 1024×1024 source.
Return Rate Benchmark by Category
Industry return rate benchmarks across ecommerce categories, apparel, beauty, electronics, etc.
LinkedIn Personal Cover Image Template (1584×396)
LinkedIn personal cover image template, 1584×396 with safe-zone overlay for profile photo and mobile crop.
Twitter / X Header Image Template (1500×500)
X / Twitter header image template, 1500×500 with safe zone for profile photo overlay and action buttons.
Facebook Page Cover Photo Template (820×312)
Facebook page cover photo template, 820×312 with mobile crop overlay (640×360 visible on mobile).
YouTube Channel Banner Template (2560×1440)
YouTube channel banner template, 2560×1440 with TV safe zone (1546×423) guaranteed visible on every device.
Facebook Event Cover Image Template (1920×1005)
Facebook event cover image template, 1920×1005 at 1.91:1 aspect ratio. Avoid text in bottom 25%.
Instagram Caption Hook Template Library
Curated library of proven Instagram caption hook templates, question, controversy, story, list, contrarian.
TikTok Hook Template Library
Curated library of proven TikTok video hook openers, first 3 seconds determine retention.
Social Media Image Dimensions Reference (Every Platform)
Complete reference of image dimensions for every social platform, post, story, cover, profile, ad, IG, X, FB, LinkedIn, TikTok, YouTube, Pinterest.
Social Post Frequency Planner
Per-platform best-practice posting cadence, frequency that maximises reach without algorithmic suppression.
Best Time to Post Lookup (By Platform)
Per-platform best posting times, when your audience is most likely active. Aggregated industry data.
Social Media Holiday Calendar 2026 (Per Platform)
Comprehensive 2026 social media holiday calendar, National Donut Day, World Mental Health Day, etc, with hashtag suggestions per platform.
Emoji Picker by Category
Searchable emoji picker organised by category and use case, for social posts, bios, captions.
Frequently asked questions
Are all 600+ tools really free? +
Yes, every tool on this page is free to use, with no signup, no email gate, no usage caps and no paid tier. They are funded by the AI Shopping Feeds product, which solves the same problems continuously and at scale.
Do I need to create an account or share my email? +
No. Every tool runs entirely in your browser. You don't need an account, you won't be asked for an email, and there's no paywall hidden behind a 'preview' result.
Do you store any of the data I paste or upload? +
No. All processing happens client-side in your browser using JavaScript. Files you drop into validators, calculators and converters never leave your device, they are not uploaded to a server, not stored, and not analysed.
Can I use these tools commercially? +
Yes. You can use the calculators, validators, generators and converters here for any commercial purpose, agency work, client deliverables, internal audits, generating production schema markup. No attribution required.
How do these compare to paid tools like Channable, Feedonomics or DataFeedWatch? +
Each tool here solves one specific job in isolation. Paid feed management platforms (including AI Shopping Feeds) connect your whole catalogue, run audits continuously, and export to every channel, that's a different product. Use these tools to spot-check individual issues; use a feed platform to manage the catalogue.
How often are new tools added? +
New tools are added every week, prioritising areas with the highest agency and merchant demand, new platform specs, structured-data updates, advertising features and reporting metrics.
Or skip the manual checks.
AI Shopping Feeds runs every audit, validation and optimisation in this toolbox continuously across your whole catalogue, and exports clean feeds to Google, Meta, TikTok and 200+ other channels.
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