Monu Tools

HTTP Status Codes

Search and look up HTTP status codes and their meanings, from 1xx to 5xx.

  • 100Continue
  • 101Switching Protocols
  • 102Processing
  • 103Early Hints
  • 200OK
  • 201Created
  • 202Accepted
  • 203Non-Authoritative Information
  • 204No Content
  • 205Reset Content
  • 206Partial Content
  • 207Multi-Status
  • 208Already Reported
  • 226IM Used
  • 300Multiple Choices
  • 301Moved Permanently
  • 302Found
  • 303See Other
  • 304Not Modified
  • 307Temporary Redirect
  • 308Permanent Redirect
  • 400Bad Request
  • 401Unauthorized
  • 402Payment Required
  • 403Forbidden
  • 404Not Found
  • 405Method Not Allowed
  • 406Not Acceptable
  • 407Proxy Authentication Required
  • 408Request Timeout
  • 409Conflict
  • 410Gone
  • 411Length Required
  • 412Precondition Failed
  • 413Payload Too Large
  • 414URI Too Long
  • 415Unsupported Media Type
  • 416Range Not Satisfiable
  • 417Expectation Failed
  • 418I'm a Teapot
  • 421Misdirected Request
  • 422Unprocessable Content
  • 423Locked
  • 424Failed Dependency
  • 425Too Early
  • 426Upgrade Required
  • 428Precondition Required
  • 429Too Many Requests
  • 431Request Header Fields Too Large
  • 451Unavailable For Legal Reasons
  • 500Internal Server Error
  • 501Not Implemented
  • 502Bad Gateway
  • 503Service Unavailable
  • 504Gateway Timeout
  • 505HTTP Version Not Supported
  • 506Variant Also Negotiates
  • 507Insufficient Storage
  • 508Loop Detected
  • 510Not Extended
  • 511Network Authentication Required

How to use the HTTP Status

  1. 01

    Type a status code or part of its name.

  2. 02

    Browse the matching codes, colored by category.

  3. 03

    Use them as a quick reference while building or debugging APIs.

Frequently asked questions

What do the categories mean?

1xx are informational, 2xx success, 3xx redirection, 4xx client errors and 5xx server errors. Each is shown in its own color.

What is the difference between 401 and 403?

401 Unauthorized means you are not authenticated, while 403 Forbidden means you are authenticated but not allowed to access the resource.

Is 418 a real status code?

418 I'm a Teapot comes from an April Fools' joke standard. It is not used in practice but is widely recognised.

About this tool

A searchable reference of HTTP status codes from 1xx to 5xx with their standard messages, grouped by category.

It is a fast lookup for developers building or debugging APIs and websites.

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