HTTP Status Code Checker
Look up HTTP status codes by number — view description, label, and response class (informational, success, redirect, client error, server error). Code never leaves your device — formatting and validation run locally in your browser.
How to Use the HTTP Status Code Checker
Similar Tools You Might Need
See allAPI Tester
Test any HTTP endpoint by sending GET, POST, PUT, or DELETE requests directly from your browser. View response status, headers, and body.
Mock API Response Generator
Craft canned API responses with status codes, headers, and bodies for testing error paths. Simulate 404s and 500s without a server — local, free, no signup.
gRPC Status Code Lookup
Look up all 17 gRPC status codes (0–16) with meanings — from OK and CANCELLED through resource and network errors for backend debugging.
Bulk URL Status Checker
Scan hundreds of URLs for status codes, redirect chains, and dead pages with CSV export for audits. SEOs check 500 links before a migration — server-side checks with auto-paced backend (~15/min per address).
QR Code Generator
Renders a scannable QR code from any text or URL with a client-side Reed-Solomon encoder at fixed high error correction. Customize size, colors, and center logo, then download the PNG — free, local, no signup.
Frequently Asked Questions
Which classes?
The built-in reference covers common 2xx, 3xx, 4xx, and 5xx codes (no 1xx entries). Unknown numbers report as not found.
Retryable codes?
429 and 503 yes; most 4xx mean fix the request, not the timing.
Unofficial codes?
Only the codes in the built-in list — novelty codes like 418 are not included.
Is my input uploaded anywhere when using HTTP Status Code Checker?
No — lookup runs locally in your browser, free with no signup.
Related Developer Tools
Last updated October 2026