OneTool

HTTP Status Code Reference

1xx–5xx codes with plain-English descriptions.

CodePhraseDescription
1001xxContinueRequest received; continue sending the body.
1011xxSwitching ProtocolsServer is switching protocols as requested.
1021xxProcessingRequest accepted for processing (WebDAV).
2002xxOKRequest succeeded.
2012xxCreatedResource created successfully.
2022xxAcceptedRequest accepted for later processing.
2042xxNo ContentSuccess with an empty response body.
2062xxPartial ContentPartial range of the resource returned.
3013xxMoved PermanentlyResource has a new permanent URI.
3023xxFoundTemporary redirect to another URI.
3033xxSee OtherSee another URI with a GET.
3043xxNot ModifiedCached representation is still valid.
3073xxTemporary RedirectTemporary redirect; keep the method.
3083xxPermanent RedirectPermanent redirect; keep the method.
4004xxBad RequestMalformed or invalid request.
4014xxUnauthorizedAuthentication required or failed.
4034xxForbiddenUnderstood but refuses to authorize.
4044xxNot FoundNo resource matches the URI.
4054xxMethod Not AllowedHTTP method not allowed for this resource.
4084xxRequest TimeoutClient took too long to send the request.
4094xxConflictRequest conflicts with current state.
4104xxGoneResource is permanently unavailable.
4154xxUnsupported Media TypePayload format is not supported.
4224xxUnprocessable EntityWell-formed but semantically invalid.
4294xxToo Many RequestsRate limit exceeded.
5005xxInternal Server ErrorUnexpected server failure.
5015xxNot ImplementedServer does not support the method.
5025xxBad GatewayInvalid response from an upstream server.
5035xxService UnavailableTemporary overload or maintenance.
5045xxGateway TimeoutUpstream server did not respond in time.

Common HTTP status codes for quick reference. Not an exhaustive IANA registry dump.

What is this tool?

HTTP status codes tell clients how a request turned out (success, redirect, client error, server error). This reference lists commonly used codes grouped by class with short descriptions you can search and filter — a cheat sheet, not the full IANA registry.

How to use it

  1. Type a code, phrase, or keyword to filter.
  2. Optionally narrow by class (2xx, 4xx, etc.).
  3. Scan the matching rows for the phrase and description.

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