🌐 HTTP Status Codes Quick Reference & Search
Quickly search and reference all HTTP status codes (1xx-5xx) with RFC definitions, use cases, and developer code snippets. 100% free and client-side.
❓ Frequently Asked Questions
What are the 5 main categories of HTTP status codes?
HTTP status codes are divided into 5 classes: 1xx (Informational), 2xx (Success), 3xx (Redirection), 4xx (Client Errors), and 5xx (Server Errors).
Which HTTP status codes should I use for REST API errors?
Common REST API error codes include 400 (Bad Request), 401 (Unauthorized), 403 (Forbidden), 404 (Not Found), 422 (Unprocessable Entity), and 500 (Internal Server Error).
Are all HTTP status codes defined by RFC standards?
Yes, standard HTTP status codes are defined by IETF RFCs (such as RFC 9110/RFC 7231), along with some additional WebDAV and Cloudflare extensions.
