HTTP Status Code Reference
Complete HTTP status code reference with 60+ codes. Search and filter by code or description. Color-coded categories. Free online HTTP status code lookup.
Why Use an HTTP Status Code Reference?
HTTP status codes are essential for web development, debugging, and API design. Whether you're building a REST API, troubleshooting a server issue, or learning web development, having a quick reference for all HTTP status codes saves time. Our tool provides a searchable, color-coded reference for all standard HTTP status codes from 1xx to 5xx.
Key Features
- Complete HTTP status code reference (1xx Informational through 5xx Server Error)
- Search and filter by code number or description
- Color-coded categories (Blue=Info, Green=Success, Yellow=Redirect, Red=Client Error, Dark Red=Server Error)
- Click to copy status code and description
- Quick reference table with category overview
How It Works
- Browse all status codes or use the category filter buttons
- Search by code number (e.g., '404') or description (e.g., 'Not Found')
- View color-coded status codes grouped by category
- Click any status code to copy it with its description
Technical Details
This reference includes 60+ standard HTTP status codes as defined by IETF RFCs. The tool uses color coding based on the first digit of the status code: 1xx (Informational) = blue, 2xx (Success) = green, 3xx (Redirection) = yellow, 4xx (Client Error) = red, 5xx (Server Error) = dark red. Search supports both numeric code matching and case-insensitive description matching. The tool is fully client-side with no external API dependencies.
Frequently Asked Questions
What do the different HTTP status code categories mean?
1xx codes are informational (request received, continuing process). 2xx codes indicate success. 3xx codes indicate redirection. 4xx codes indicate client errors (the request contains bad syntax or cannot be fulfilled). 5xx codes indicate server errors (the server failed to fulfill a valid request).
What is the most common HTTP status code?
200 OK is the most common status code, indicating a successful request. 404 Not Found and 500 Internal Server Error are also very commonly encountered in web development.
Are all HTTP status codes standardized?
Most HTTP status codes are defined in RFC specifications (RFC 7231, RFC 6585, RFC 4918, etc.). However, some codes like 418 I'm a Teapot (RFC 2324) are humorous. Custom status codes can also be used in APIs, though it's recommended to use standard codes when possible.
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