HTTP Header Parser

API & Web

Turn raw HTTP headers into structured JSON without losing repeated fields.

Parameters

Input

Output

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0 characters · 0 bytes

Use cases

When to use HTTP Header Parser

Turn raw HTTP headers into structured JSON without losing repeated fields.

1Inspect response headers copied from a network log

2Review repeated Set-Cookie fields

3Normalize request headers before adding them to a test case

4Parse URLs, run XPath queries, and inspect HTTP status codes

5Build minimal reproducible HTTP requests for frontend/backend debugging

6Review error codes and API compatibility before release

Guidance

This tool parses header text only and does not send a request or validate every protocol-specific field value.

Inspect the components and query parameters of an absolute URL.

Look up the standard meaning of an HTTP response status.

Turn common cURL requests into JavaScript Fetch or Axios code.

Test HTTP APIs directly from the browser.