About the HTTP Status Codes
Look up a status code by number, name or meaning. Filter by class to review success, redirect, client and server responses.
How to use it
- 1Search or filterType a code or choose a class.
- 2Read the meaningEach entry explains when the code is used.
- 3Check the class2xx success, 3xx redirect, 4xx client, 5xx server.
Why use this http status codes?
- Nothing leaves your device. The work happens in your browser tab. There is no upload endpoint in this app, so your files and text cannot be stored, logged or seen by us.
- No upload wait. You skip the round trip to a server entirely. Results are limited by your own CPU, not by network speed or queue size.
- Free, no account, no quotas. No sign-up wall, no watermark, no daily limit. Optional accounts only exist to save favourites and presets across devices.
Frequently asked questions
Is my reference safe to use here?
Yes. This tool runs entirely in your browser using JavaScript. Nothing you paste or open is sent to a server, and the page keeps no copy after you close it.
Do I need to create an account?
No. Every tool is fully usable without signing in. An account only adds saved favourites and reusable presets.
Does it work on a phone?
Yes. The interface is mobile-first with large touch targets and a stacked layout, so it works on phones and tablets as well as desktops.
What is the difference between 401 and 403?
401 means authentication is missing or failed. 403 means the server knows who you are but refuses access.
Is 418 a real status code?
It is an April Fools' joke that became an accepted easter egg. It is not part of the core HTTP specification.