HTTP Status Codes

Searchable HTTP status code reference with live filter, category chips, detail view, and related codes.

HTTP status codes

— codes · / to search

Category Showing all classes

View

Pick a code

Click any status code on the left for the full profile — category meaning, RFC reference, related codes, and example usage.

Quick reference

Anatomy of a status line

HTTP/1.1 404 Not Found

Protocol & version Numeric code Reason phrase

The five classes at a glance

1xxInformational — keep going, the response isn’t finished.
2xxSuccess — the request was received and accepted.
3xxRedirect — additional action is needed to finish the request.
4xxClient error — the request has a problem the caller must fix.
5xxServer error — the server knows the request is valid but can’t fulfil it.

Tips & shortcuts

Filter by class first, then narrow with search — it matches code, name, and description. Click any row to expand it inline; its full profile also shows in the panel above.

/: Focus search
↑↓: Move selection
Enter: Expand the highlighted row
Esc: Clear search or collapse row
1–5: Jump to 1xx – 5xx class
g: Toggle grouped / flat

HTTP status codes

Related Calculators