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Tech stack detector. 10 categories, 60+ tools.

Paste HTML source. We scan for JS framework, CSS framework, analytics, payment, ads, chat, CRM, A/B testing, CDN, tag manager signatures — 60+ tools across 10 categories. Browser-only, no upload.

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Paste HTML source. We scan 60+ signatures across 10 categories — JS framework, CSS framework, analytics, marketing, payment, ads, chat, A/B testing, tag manager, CDN. Each match shows which signature triggered it, so you can verify rather than trust blindly.

How do I get HTML source?
  1. View source: right-click → 'View page source' (or Ctrl-U / Cmd-U). Select all, copy.
  2. curl: curl -L https://example.com for the raw HTML.
  3. DevTools (best for SPAs + tag-manager-loaded tools): F12 → Elements → right-click document root → Copy → Copy outerHTML. The rendered DOM includes scripts loaded after page load.
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