Look up HTTP status code
Look up an HTTP status code and its registered meaning.
Local processing · Nothing is uploaded · 1 MB input limit
Input & settings
Ready. Enter your input to begin.
How to use this tool
Paste your source, choose the supported options, then process. Inspect or download the complete result.
Limits and behavior
Offline standards-based dictionary. Unassigned/nonstandard codes are labeled unassigned. Includes older registered codes with explanatory notes. Maximum total input 1 MB, output 3 MB, JSON nesting 64 levels. Processing stays in your browser worker. Input is limited to 1 MB and output to 3 MB. No input content is saved by CraftAI.
Understand an HTTP response code
Find the meaning of a recognized 2xx, 3xx, 4xx or 5xx response in web development.
Does a status code explain every server problem?
No. A response code is only one clue; server logs and application behavior provide further context.
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