🌐HTTP Status Codes
A fast, searchable reference for every HTTP status code — grouped by class, with plain-English descriptions and usage notes.
Free HTTP Status Codes Reference
Not sure what a status code means — or which one to return? Our free HTTP status codes reference covers every standard code from 100 to 511, plus common extensions like 429 Too Many Requests and 451 Unavailable For Legal Reasons, all in one searchable page. Type a number or keyword to jump straight to the code you're looking for, or browse by class: informational, success, redirection, client error, or server error.
Every entry includes a plain-English description and a concise note on when you'd actually encounter it — in an API response, a browser redirect, a rate-limiter, or a server failure. One-click copy grabs the code or the full status string, and stable URL fragments let you link directly to any code for documentation or team discussions.
Everything is bundled locally — no server calls, no tracking. Simply search or browse to find the status code you need, instantly.