Cookie Analyzer — Free & Private

A free edge API by formatho.com, privacy-first developer tools.

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Free, no signup, runs entirely in your browser — your data never leaves your device.

🔓 Free🔒 Zero tracking🚫 No data collection⚡ Edge-fast

Usage — Set-Cookie header

curl "https://cookie-analyzer-formatho.filesformatho.workers.dev/api?set-cookie=session%3Dabc123%3B%20Path%3D%2F%3B%20Secure%3B%20HttpOnly%3B%20SameSite%3DLax%3B%20Max-Age%3D3600"

Returns name, value, attributes, flags, expiry classification, cookie scope and security warnings (missing Secure/HttpOnly/SameSite, __Host- prefix rule violations, oversize cookies).

Usage — request Cookie header

curl "https://cookie-analyzer-formatho.filesformatho.workers.dev/api?cookie=a%3D1%3B%20b%3D2"

Split into name/value pairs with percent-decoding and duplicate detection. Omit both params to analyze the Cookie header of your own request.

Full parameter reference: /api endpoint.

Privacy-first: parsing runs in-memory at the edge; nothing you send is logged or stored.

Full browser tool

Analyze cookies entirely client-side: Cookie Analyzer on formatho.com.

All Formatho edge APIs

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