HTTP Status Codes
Look up all HTTP status codes with names and descriptions. Search by code or keyword. Quick reference for developers.
No codes found.
How to use?
You can search by the number (404, say) or by a keyword ("not found"). To narrow things down to a single class, use the category filters, which show only the codes from that group.
Every HTTP status code
A 404 everyone recognises. But a 422, a 451 or a 502? That's where it gets murky. HTTP status codes are how the server tells you what happened to a request, and knowing them saves hours of debugging. This reference pulls them all together, with name and description.
Search by code or by keyword and the meaning shows up right away, organised by the protocol's families: 2xx for success, 3xx for redirection, 4xx for client errors, 5xx for server errors. It's the lookup for anyone building APIs, debugging integrations or just trying to make sense of the response that turned up.
Everything runs in the browser, so there's no spec to open and no numbers to memorise. A straightforward reference for the daily work of anyone who deals with the web.
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