📡

HTTP Status Codes Reference

Complete reference for all HTTP status codes —1xx through 5xx. Search by code number or keyword. Everything runs in your browser, no server, no tracking.

Developer Tools Runs locally No data sent
HTTP REST API web development reference

What is an HTTP Status Codes Reference?

An HTTP status codes reference explains standard response codes such as 200, 301, 404, and 500 so you can quickly understand what a server response means. It is useful for API debugging, backend development, QA, docs, and support workflows.

How to Use HTTP Status Codes Reference

  1. Search for the numeric code or status phrase you need.
  2. Read the description and category of the response code.
  3. Compare similar codes such as 401 vs 403 or 301 vs 302.
  4. Use the result in debugging, implementation, or documentation work.

Quick Guides

HTTP Status Codes Explained gives you a faster mental model for 2xx, 3xx, 4xx, and 5xx responses during debugging.

Related Tools

🔗
URL Encode / Decode
Encode or decode URL parameters and components
 🎨
JSON Formatter
Prettify, minify, validate JSON; convert to CSV or SQL
 🔐
JWT Decoder / Inspector
Decode JWT header, payload, signature and inspect claims
Understand HTTP Status Codes Reference ▾
Example
Input 200 OK : Request succeeded, response body contains the result.
Output 404 Not Found : Server cannot find the requested resource.
Common Use Cases
  • Look up HTTP response codes while debugging APIs and web apps
  • Explain redirect, auth, and server error semantics to teammates
  • Check which status code best matches an API or backend behavior
  • Use as a quick reference during docs writing or incident response
Why Use This Tool
  • Useful for APIs, browser debugging, backend work, and docs.
  • Helps distinguish similar success, redirect, client-error, and server-error codes.
  • Works as a fast browser-side reference without extra tooling.
Frequently Asked Questions
When should I use 301 vs 302?

Use 301 (Moved Permanently) for permanent URL changes —search engines update their index. Use 302 for temporary redirects.

What is the difference between 401 and 403?

401 Unauthorized means authentication is required. 403 Forbidden means authenticated but not allowed.

What does HTTP Status Codes Reference —Complete List with Descriptions do?

HTTP Status Codes Reference —Complete List with Descriptions runs entirely in your browser and helps you complete this task without uploading data to a server.

Is HTTP Status Codes Reference —Complete List with Descriptions free to use?

Yes. This tool is free to use and does not require sign-up.