HTTP Status Codes

A searchable reference for every HTTP status code

HTTP status codes tell clients what happened to a request, but few of us remember every one. This HTTP status codes reference lets you search the full list, from 1xx informational through 5xx server errors, and read a clear explanation of what each code means and when to use it.

How it works

The complete table of standard status codes is bundled into the page, so searching and filtering happen instantly in your browser with no network requests. Type a number like 404 or a keyword like "redirect" and the list narrows to matching entries, each with its official reason phrase and a plain-language description.

Practical use cases

• Look up an unfamiliar code returned by an API you are integrating.
• Decide whether to return 401 or 403 from your own endpoint.
• Confirm the right redirect code, such as 301 versus 302 versus 307.
• Explain a status code to a teammate during debugging.

Inspecting requests? Break a request URL apart with the URL Parser, decode an auth token with the JWT Decoder, or tidy a JSON response body using the JSON Formatter.

Private and free

Nothing you search is sent anywhere, since the reference runs entirely client-side with no upload, no account, and no tracking. It is free and works on any modern desktop or mobile browser.