HTTP Status Code Lookup
Quickly look up the name and meaning of an HTTP status code.
Category: Dev Tools
When to use?
Use it during API development to check the exact meaning of responses like 401, 403, 422, 429, or to learn the HTTP status code scheme.
How to use
- Enter a status code number or find it in the list.
- The code's name, meaning, and use are shown.
Input Explanation
Enter a 3-digit status code (e.g. 404, 500) or a related keyword like "Not Found" in the search box.
Calculation Basis
It matches your input against a predefined HTTP status code (100–599) database by name, code, and description via regex, rendering filtered results.
Usage Examples
- Check API errors - Check the meaning of responses like 401, 403, 422, 429.
- Quick pre-deploy check - Check inputs and output to reduce errors before dev/ops work.
- Aid docs/reviews - Copy the result into dev docs, issues, or review comments.
Examples
- 404 → Not Found: the requested resource was not found
- 401 → Unauthorized: authentication required
- 429 → Too Many Requests: rate limit exceeded
Cautions
- Generated output is for reference; test carefully before production use.
- It covers common HTTP status codes.
Guides
Status code ranges
2xx is success, 3xx redirection, 4xx client error, 5xx server error. Looking at the range first narrows down the cause when debugging.
API documentation
When documenting API responses, check the status code meaning along with MIME type and the JSON formatter to clarify the response structure.
FAQ
Is it static data?
Yes, it provides common HTTP status codes as static data.
Can I look up by code number?
Yes. Enter the status code number to see its name and meaning.
How are status codes classified?
2xx success, 3xx redirect, 4xx client error, 5xx server error.
Which codes are most common?
200 (OK), 301/302 (redirect), 404 (not found), and 500 (server error).
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