No signup No tracking Browser-only

Free Shopify Tools that catch real bugs

A small collection of free, no-signup browser tools I built while auditing Shopify stores for clients. Each one solves a specific bug I kept seeing repeatedly across 100+ engagements - the kind of bug that costs international conversion rate, blocks Markets currency conversion, or burns crawl budget for months before anyone notices.

12 tools shipped
100+ audits behind them
0 signup walls, ever
100% runs in your browser

Available now

Click any tool to open it. New ones drop as I write up the audits behind them.

Live

Shopify App Speed Index

Free Shopify app speed index: 192 apps ranked by the blocking time each one adds to a mobile store, with list pricing and what to replace. Sort, filter, download the raw data.

  • Which app in your stack is the single heaviest
  • The 14 apps that each cost more than 180ms
  • Where a lighter competitor does the same job
  • What you pay per month for the blocking time you get
  • Which categories are heavy by nature (page builders, reviews)
192 apps, 18 categoriesSort by speed, price, category49 apps with list pricingRaw JSON, free to useNo signup
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Live

Shopify Speed Test

Free Shopify speed test: see the cold first-visit load a new mobile shopper gets, frame by frame, with LCP and TBT vs Google's thresholds and the app-by-app blocking cost. No signup.

  • Slow first paint from render-blocking app scripts (Klaviyo, Yotpo, page builders)
  • The measured blocking time and monthly cost of every third-party app on load
  • A filmstrip that shows how late your hero image and price actually appear
  • How your cold-load speed stacks up against a named competitor in your niche
  • LCP, Speed Index and Total Blocking Time scored against Google's thresholds
Browser-onlyNo signupReal Lighthouse dataApp cost + fixesHead-to-head vs a rival
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Live

Shopify App Stack Cost Calculator

Free tool that detects the apps installed on any Shopify store, totals the typical monthly and annual cost, and ranks which ones replace cleanly with native Liquid so you can see exactly what you could stop paying.

  • Typical monthly and annual cost for every app on the store
  • The total you are paying across the whole stack
  • Which apps replace cleanly with native Liquid
  • The exact annual saving from going native
Browser-onlyNo signupLive app detectionFree forever
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Live

Shopify Robots.txt + AI Crawler Checker

Paste your robots.txt contents and instantly see which crawlers are allowed or blocked: Googlebot, GPTBot, ClaudeBot, PerplexityBot, Google-Extended, and 6 more. Checks Shopify-specific patterns including /policies/ disallow and missing Sitemap directives. 100% browser-side, no signup, no network calls.

  • AI crawlers silently blocked from training and citation, costing you organic brand mentions in ChatGPT, Perplexity, and Gemini answers
  • Googlebot or Bingbot blocked from key paths like /products/ or /collections/, hiding your catalog from search index
  • Missing Sitemap directive in robots.txt, leaving crawlers without a map to your most important pages
  • /policies/ disallow that ships with some Shopify setups flagged so you know whether it is intentional
Browser-onlyNo signupPaste and checkAI + SEO crawlersFree forever
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Live

Shopify Product Schema Validator

Paste your Shopify product page HTML or raw JSON-LD and validate it against the Product schema errors that block AI citation and Google rich results: missing GTIN/brand/MPN, AggregateRating without ratingValue or reviewCount, a price with a currency symbol, malformed priceCurrency/availability, duplicate Product blocks from a review app, and missing BreadcrumbList positions. It also flags FAQ opportunities and the five AI-search content gaps, and returns corrected Product and FAQPage JSON-LD to paste in. 100% browser-side, no signup, no network calls.

  • Missing GTIN, brand, or MPN that prevent AI agents from matching your SKU across competing storefronts
  • Duplicate Product blocks from your theme and review app fighting over the same SKU, which crawlers merge wrong or ignore
  • AggregateRating without ratingValue or a reviewCount, which Google rejects and review-weighted recommendations skip
  • A price emitted as a string with a currency symbol or thousands separator that breaks price-comparison parsing
  • Offer with malformed priceCurrency (not ISO 4217) or non-standard availability enum, dropping the product from price-comparison flows
  • BreadcrumbList missing integer position values or malformed itemListElement, isolating the product from category-level agent queries
  • No FAQPage schema even though the page asks buyer questions, so AI engines cannot lift your Q and A into their answers
  • Content gaps on the five questions AI search extracts: what the product is, who it is for, how it compares, what it solves, and what buyers ask
Browser-onlyNo signupPaste and checkLiquid-aware fixesAI search readinessFree forever
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Live

Shopify Statistics 2026

Free browser tool for Shopify merchants. Enter your revenue and CVR; the dataset reorders to what matters for your store and every actionable stat links to the fix. 60+ sourced numbers.

  • Platform size, growth, GMV, merchant count
  • Core Web Vitals: LCP, INP, CLS pass rates and Shopify-specific medians
  • Conversion benchmarks: cart abandonment, mobile vs desktop, checkout completion
  • Markets and multi-currency adoption + AOV deltas
  • Agentic storefront and AI shopping traffic numbers from Q1-Q2 2026
Browser-onlyNo signup60+ stats across 7 categoriesPersonalize by revenue + CVREach actionable stat links to the fixWeekly auto-refresh + per-stat freshnessFree forever
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Live

Shopify App Bloat Index

Free browser tool. Audit your Shopify store: grade, app stack TBT, monthly app spend, estimated revenue lost, top culprits with replace-with recommendations, action plan. Compare against competitors.

  • Your grade with industry benchmark band (top 10%, median, bottom 25%)
  • Estimated monthly app subscription spend (typical mid-tier pricing per app)
  • Estimated monthly revenue lost from app-driven CVR drag (uses your revenue + CVR)
  • Per-culprit replacement recommendations linked to Liquid snippets, CWV playbook, or the relevant sister tool
  • Action plan ranked by combined cost + TBT impact
  • Optional competitor leaderboard for the 'theirs is bloated' conversation
Browser-onlyNo signupMulti-plan pricing per app (free to enterprise)Plan defaults by your revenue tier, override any planLive monthly + yearly spend recalculationAction plan ranked by $ + ms savedOptional competitor leaderboardWeekly auto-refresh signature + pricing libraryFree forever
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Live

Shopify Checkout Extensibility Migration Checker

Free browser tool. Paste any Shopify URL to find legacy checkout customizations breaking Aug 26 2026 (non-Plus) and June 30 2026 (Scripts).

  • Inline gtag, fbq, GTM, TikTok ttq, Pinterest pintrk, Snap snaptr from public HTML
  • Klaviyo onsite, Postscript SDK, Attentive, Triple Whale, Bing UET, Recharge widget
  • Web Pixels Manager active (single reliable green flag for native channel apps)
  • Shop Pay component CSS overrides using !important
  • Admin verification checklist for everything the public HTML cannot reveal
Browser-onlyNo signupAug 26 2026 deadlinePublic-HTML signals + admin checklistFree forever
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Live

Shopify Core Web Vitals Checker

Free Shopify Core Web Vitals checker: paste any Shopify URL to grade its real-user LCP, INP, and CLS from Google's Chrome UX Report, with the Shopify-aware Liquid fixes to pass. No signup.

  • LCP regressions from lazy-loaded hero images and missing image_url filters
  • INP issues caused by Klaviyo, Yotpo, Recharge stacking on PDPs
  • CLS from currency widgets, review apps, cookie banners injecting late
  • TTFB problems from theme bloat, Markets redirects, custom checkout.liquid
  • Render-blocking apps and unsized images flagged by Lighthouse
Browser-onlyNo signupReal CrUX dataLiquid-aware fixesFree forever
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Live

Shopify App Detector

Free Shopify app detector: scan any store to see every third-party app installed (Klaviyo, Yotpo, Recharge, Gorgias, and more) and the speed cost each one adds. Browser-only, no signup.

  • Klaviyo, Yotpo, Loox, Judge.me, Stamped, and other reviews/popup apps
  • Recharge, Skio, Loop subscription apps
  • Page builders (Shogun, PageFly, GemPages) which are the heaviest
  • Analytics stack (GTM, Meta Pixel, Hotjar, Clarity, TikTok Pixel)
  • Chat widgets (Gorgias, Tidio, Tawk, Crisp, Intercom)
Browser-onlyNo signup192 apps detectedCost + percentile + TAEsFree forever
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Need a developer to actually fix what these tools find?

The tools tell you what's broken. The fix is often theme-specific Liquid work, Markets configuration, or a CRO sprint. That's what I do.

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