04 / Testing / http-status-codes
HTTP Status Codes
Searchable HTTP status code reference.
ReadyLocal processing
04 · WorkspaceInput → Process → Output · in-browser
How to use
- 01Search by code, name or meaning.
- 02Filter by class using the 1xx to 5xx buttons.
- 03Read the short plain-English explanation.
- 04Use it as a quick reference while debugging APIs.
What is this tool?
A compact, searchable reference of the HTTP status codes developers meet in practice, grouped by class and explained in one line each — no scrolling through the full specification.
Common use cases
- Choosing the right response code for an endpoint
- Explaining a failure in a bug report
- Reviewing API contract definitions
- Onboarding new QA engineers
FAQ
Are all codes listed?
The commonly used codes are included, grouped by 1xx to 5xx class.
What is the difference between 401 and 403?
401 means not authenticated; 403 means authenticated but not allowed.
When should I use 422?
When the syntax is valid but the content fails semantic validation.
Is this reference offline?
Yes, the data ships with the page.