Complete HTTP status code reference: all 1xx/2xx/3xx/4xx/5xx codes with names, descriptions, and use cases. Searchable and filterable, links to MDN docs.
TL;DR: Free HTTP status codes reference covering all 1xx-5xx codes with descriptions and usage scenarios. Fully offline, no registration required.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
FAQ
Completely free, no registration required. Look up HTTP status codes directly in your browser — all data is built-in locally with no usage limits.
It covers all HTTP status codes defined by RFC standards, including 1xx informational, 2xx success, 3xx redirection, 4xx client errors, and 5xx server errors, each with descriptions and usage scenarios.
No. All status code data is built into the page, fully available offline. Supports fast search by status code number or keyword.
401 Unauthorized means unauthenticated (login or valid credentials required). 403 Forbidden means authenticated but lacking permission to access the resource. Simply put: 401 asks "Who are you?", 403 says "You cannot enter."
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