HTTP Status Codes Reference

Learn common HTTP status codes used in APIs and web development.

200OK

The request succeeded.

201Created

The request succeeded and a resource was created.

204No Content

The server processed the request but returned no content.

400Bad Request

The server could not understand the request.

401Unauthorized

Authentication is required.

403Forbidden

The client does not have permission.

404Not Found

The requested resource could not be found.

409Conflict

The request conflicts with the current state.

500Internal Server Error

The server encountered an unexpected condition.

503Service Unavailable

The server is temporarily unable to handle the request.