HTTP Header Parser Online
Free online developer tool that splits raw HTTP headers into key/value pairs for proxy debugging.
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Free online developer tool that splits raw HTTP headers into key/value pairs for proxy debugging.
How it works
This tool splits raw header text into structured header fields. It helps debug CORS, caching, cookies, and proxies.
Example
Input:
Content-Type: application/json
Cache-Control: no-cache
Output:
{"Content-Type":"application/json","Cache-Control":"no-cache"}FAQ
Are header names case-sensitive?
HTTP header field names are case-insensitive, though they are often shown in canonical casing.
Why do I see multiple Set-Cookie headers?
Set-Cookie can appear multiple times because each cookie is typically set in a separate header line.
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