HTTP Status Code Lookup
Look up HTTP status codes and their meaning in the browser. Search by number, phrase, or a word from the description. Standard RFC codes and common unofficial CDN or framework codes are included.
| Code | Phrase | Source | Meaning |
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About HTTP Status Code Lookup
Look up HTTP status codes online and read a short meaning for each code, from 100 Continue through 511 Network Authentication Required. This free HTTP status code lookup covers standard RFC codes plus common unofficial values from nginx, IIS, Cloudflare, and frameworks so a 499 or 522 in a log is not a mystery.
Developers, QA, and support teams use a status code reference when a client shows 401 instead of 403, when a redirect should be 301 rather than 302, or when a gateway returns 502. Search by number, reason phrase, or a word such as rate limit. Filter by 1xx, 2xx, 3xx, 4xx, or 5xx to scan a class at a time.
Click a row to pin the code, phrase, and source. Unofficial codes are marked so you can tell a real RFC status from a CDN or platform extension. Pair this page with the HTTP headers viewer when you need the headers that travel with a status.
Lookup runs in your browser with no upload. Use this free HTTP status code list whenever you need a private, fast explanation of 200, 201, 204, 301, 304, 400, 401, 403, 404, 409, 422, 429, 500, 502, 503, and the rest.
Features
- Look up HTTP status codes and what they mean
- Parse, look up, convert, or generate API helpers instantly
- Copy results into docs, tickets, or code
- Private debugging without sending payloads to Free Tool Mate
- No signup and no intentional server-side storage of tool input
How to use HTTP Status Code Lookup
- Paste a URL, headers, status code, cURL command, or JSON into HTTP Status Code Lookup.
- Run the parse, lookup, convert, or generate action.
- Copy the readable result into your docs, ticket, or code.
- Processing stays in your browser for private debugging.
Suggested next steps
- HTTP Headers Viewer — Parse raw HTTP request or response headers
- cURL Generator — Build a cURL command from URL, token, headers, and body
- JSON API Tester — Send JSON requests and pretty-print JSON responses
Frequently asked questions
Is HTTP Status Code Lookup free?
Yes. HTTP Status Code Lookup on Free Tool Mate is free to use in your browser. There is no paid unlock for the core tool features described on this page.
Does HTTP Status Code Lookup upload my data?
No. HTTP Status Code Lookup is designed to process your input locally in the browser. Free Tool Mate does not intentionally store tool input or uploaded files on the server.
Do I need an account to use HTTP Status Code Lookup?
No account is required. Open the page, use HTTP Status Code Lookup, and leave when you are done.
What can I use HTTP Status Code Lookup for?
HTTP Status Code Lookup covers Look up HTTP status codes and what they mean. It is built for quick, private work in the browser without installing desktop software.