HTTP Status Codes
Look up any HTTP status code, what it means and how to fix common errors like 401, 403, 404, 500, 502, 503 and 504. Free and private: runs in your browser.
Type a code (404), a class (5xx) or a word (redirect) to search.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Use cases
- Answer a quick question without leaving the browser.
- Debug web and API behaviour faster.
- Share a precise result with a teammate.
Frequently asked questions
What is the difference between 401 and 403?
401 means "who are you?": credentials are missing or invalid. 403 means "I know who you are, but you can't do this".
Is the HTTP Status Codes free?
Yes. It is free with no sign-up, and it runs entirely in your browser, so your input is never uploaded or stored.
Do I need an account?
No. The tool is free, needs no sign-up and runs in your browser.
Related tools
Checking one snippet is a start. Scan your whole repository for free with CodeInspector.