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HTTP Status Codes

Look up HTTP response codes by number or keyword, grouped by 1xx–5xx categories.

Look up HTTP response codes by number or keyword, grouped by 1xx–5xx categories.

Quick start: Type a code or keyword → Filter by category (2xx, 4xx, etc.) → Read the description

How to use HTTP Status Codes

  1. 1

    Type a code or keyword

  2. 2

    Filter by category (2xx, 4xx, etc.)

  3. 3

    Read the description

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Why use HTTP Status Codes?

  • 50+ codes covering RFC standards and common quirks
  • Instant fuzzy search on code, name, and description
  • Grouped by informational, success, redirect, client error, server error

Common use cases

  • Debugging API responses
  • Teaching HTTP fundamentals
  • Writing documentation

About HTTP Status Codes

HTTP Status Codes is a searchable reference for every status a server can return — from the common 200 OK and 404 Not Found to the niche 451 Unavailable For Legal Reasons and 418 I'm a teapot. Each entry includes a plain-English description so you can diagnose API behavior without hunting through specs.

Frequently asked questions

Yes — 207, 422, 423, 424, 507, and others are included.
It's an April Fools' joke from RFC 2324 and is still in use by some services as a whimsical error.

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