HTTP Status Code Lookup — Free & Private API

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

curl "https://http-status-codes-formatho.filesformatho.workers.dev/api?code=404"
curl "https://http-status-codes-formatho.filesformatho.workers.dev/api?class=5xx"
curl "https://http-status-codes-formatho.filesformatho.workers.dev/api?all=true"

Returns reason phrase, category (1xx–5xx), plain-English description and the RFC that defines each code — all 62 standard codes covered, plus classification of any valid unassigned code (100–599).

Full parameter reference: /api endpoint.

Privacy-first: lookups are answered from an in-memory table at the edge; nothing is logged or stored.

Full browser tool

Searchable status-code reference with copy buttons: HTTP Status Codes on formatho.com.

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