HTTP Status Code Reference – Complete HTTP Response Codes

Browse HTTP status codes instantly using JavaScript.

HTTP Status Code Reference PRO

HTTP Status Code Reference

Browse and search HTTP response codes instantly using browser-based JavaScript.

1xx
Informational
2xx
Success
3xx
Redirection
4xx
Client Errors
5xx
Server Errors

This guide includes:

  • HTTP response codes
  • API status codes
  • Server error explanations
  • Client error codes
  • HTTP categories
  • Live HTTP status code reference tool

What are HTTP Status Codes?

HTTP status codes are standard server responses returned after HTTP requests.

They are commonly used for:

  • APIs
  • Websites
  • Backend systems
  • Authentication
  • Browsers
  • Network communication

HTTP Status Code Categories

HTTP status codes are divided into categories:

1xx Informational
2xx Success
3xx Redirection
4xx Client Errors
5xx Server Errors

Common HTTP Status Codes

Successful response:

200 OK

Client error:

404 Not Found

Server error:

500 Internal Server Error

Why HTTP Status Codes Matter

HTTP status codes help developers:

  • Debug APIs
  • Detect server issues
  • Handle authentication
  • Improve applications
  • Analyze backend systems
  • Build reliable APIs

Browser-Based HTTP References

Modern HTTP status code references can run directly in the browser using JavaScript.

Benefits include:

  • Instant search
  • Better usability
  • No server processing
  • Faster debugging

Common HTTP Status Code Use Cases

Developers use HTTP response codes for:

  • API debugging
  • Authentication systems
  • Error handling
  • Backend development
  • Monitoring systems
  • REST APIs

Live HTTP Status Code Reference Tool

Use the tool below to browse and search HTTP status codes instantly.

Everything runs locally in your browser using JavaScript.

Features

  • HTTP status code categories
  • Live search and filtering
  • 1xx / 2xx / 3xx / 4xx / 5xx support
  • Detailed explanations
  • Developer-focused descriptions
  • Copy buttons
  • Browser-based search
  • Instant filtering

FAQ

Is this HTTP status code reference free?

Yes, completely free.

Does this tool support API response codes?

Yes. Standard HTTP and API status codes are supported.

Does this tool store searches?

No. Everything runs locally in your browser.

Can I search specific status codes?

Yes. Live filtering and search are supported.

Is this tool suitable for developers?

Yes. It is designed for developers, APIs and backend workflows.

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