Chuk Analyzer per Chuk Finley

Chuk Analyzer instantly reveals the technology stack behind any website — content management systems, JavaScript frameworks, web servers, analytics, ecommerce platforms, CDNs and thousands more.

Features
- 7,500+ fingerprints, bundled offline — detection works with no network calls
- Version detection and confidence scores
- Results grouped by category
- Export as JSON or CSV, or copy to clipboard
- Light and dark theme

100% free. No account, no sign-up, no paywall, no "unlock with Pro".

Private by design. Everything runs locally in your browser. No page data ever leaves your machine — no tracking, no data collection.

Open source (GPL-3.0): https://github.com/chukfinley/chuk-analyzer
Fingerprint database and icons from the open-source enthec/webappanalyzer project (GPL-3.0).