HTTP Status Codes — Lookup & Reference Online
Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning. Plain-language explanations of 40+ codes. No signup.
HTTP Status Codes
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What is Http status codes?
HTTP Status Codes — Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning. Plain-language explanations of 40+ codes. No signup.
A built-in reference of 40 common HTTP status codes, each with an originally written plain-language explanation. Numeric input is matched exactly; text search matches against names and descriptions and returns the best hit plus other matches. Everything runs locally in your browser — no network requests. Limitation: only the most common 40 codes are covered; rare or experimental codes may not be in the reference.
Why use this http status codes?
Built for http status codes
Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning. Plain-language explanations of 40+ codes. No signup.
Transparent & honest
Only 40 common codes are in the reference; obscure or vendor-specific codes may be missing.
Private by design
Everything runs in your browser. Your inputs never leave your device.
Works everywhere
Fully responsive — perfect on desktop, tablet, and mobile. No app needed.
Regularly updated
Regularly maintained and reviewed to ensure accuracy.
Free forever
No accounts, no limits, no watermarks. Use HTTP Status Codes as much as you need.
How to use HTTP Status Codes
- 1Type a status code number (like 404) into the "Status code" box — or type words like "redirect" into the search box.
- 2Run the tool to see the official name of the code.
- 3Read "What it means" for a plain-language explanation of what the server is telling you.
- 4Check the category (1xx–5xx) to know whether it is informational, success, redirection, or an error.
- 5Read "Common use" to see the real-world situations where this code appears.
What can you do with HTTP Status Codes?
- Http status codes list — Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning.
- Http 404 meaning — Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning.
- Http response codes — Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning.
- Status code checker — Free HTTP status codes reference — look up any status code (404, 500, 301…) or search by meaning.
Good to know
- Only 40 common codes are in the reference; obscure or vendor-specific codes may be missing.
- Descriptions are plain-language summaries, not legal readings of the HTTP specifications.
- Text search returns the best single match; check "Common use" for the list of other matches.
How it works
A built-in reference of 40 common HTTP status codes, each with an originally written plain-language explanation. Numeric input is matched exactly; text search matches against names and descriptions and returns the best hit plus other matches. Everything runs locally in your browser — no network requests. Limitation: only the most common 40 codes are covered; rare or experimental codes may not be in the reference.
Examples
Status: ok — 404 Not Found, 4xx Client Error: the server cannot find the requested resource.
Status: ok — returns the best redirect match (e.g. 301/302) with other redirect codes listed.
Status: error — status codes must be between 100 and 599.
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