Look up any HTTP status code in plain English, from a bundled list.
Anslation CoreRuns in your browser — nothing to install
anslation.one/apps/anslation-http-status
Anslation HTTP Status Codes
Anslation HTTP Status Codes on Web app — installable PWA — no store needed
Anslation HTTP Status Codes
Anslation HTTP Status Codes on Workspace — inside Anslation One
Anslation HTTP Status Codes is a searchable bundled reference, with no lookups, to the status codes you meet when building and debugging websites and APIs, from 100 Continue to 511 Network Authentication Required, plus the unofficial codes nginx logs (444, 494 to 497 and 499) and Cloudflare returns (520–526). Search by number (40 finds every 40x code), by name, or by what you are seeing, such as “rate limit” or “redirect”, and filter by class; press / to jump to the search. Each code has a plain-English meaning and the document that defines it, using the current RFC 9110 names, and many add where you usually meet it and what to check. Type a number that is not a registered code and it tells you what its class means. Star the codes you look up often; your stars are kept on this device.
Web App · For everyone · Developer Tools
Version 1.0.0
Oct 21, 2026
HTTP Status Codes launched: a bundled reference of over 60 codes with plain-English meanings, search, class filters and stars.
HTTP Status Codes launched: a bundled reference of over 60 codes with plain-English meanings, search, class filters and stars.
Oct 21, 2026
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Runs in your browser. What you enter stays on this device and is not used for tracking.
The creator declares no third-party tracking.
No data linked to your identity is declared.
This data may be collected but is not linked to your identity:
Privacy practices may vary, for example based on the features you use. Label checked Oct 21, 2026. Runs entirely in the browser; nothing you enter is uploaded.
Keep the codes you star in this browser so it is there next time.
Web app
installable PWA — no store needed
Workspace
inside Anslation One
Plan: Free
1 permission requested. The install review lists them before anything is installed.
90
/ 100
Eligible
Sample listing: these checks run on seed data. No certification review has taken place.
Quality score
Passed
Security review
Needs evidence
Privacy label
Passed
Support route
Passed
Release ready
Passed
No runtime check has reported for this app yet.
Signals the listing carries; the passport has the evidence behind each one.
The sandbox opens Anslation HTTP Status Codes with sample records. Nothing you do there reaches your workspace.
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