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DeWelopeTools

HTTP Header Parser

Parse and explain HTTP response headers. Paste raw headers and get a breakdown of each header with its purpose, common values, and security implications.

How to Use HTTP Header Parser

The HTTP Header Parser takes raw HTTP response headers and explains each one. Paste headers from browser DevTools or curl output and get a clear breakdown with the header name, value, and a description of what it does. Covers content headers, caching, CORS, security headers (HSTS, CSP, X-Frame-Options), and more. Essential for debugging API responses, understanding caching behavior, and auditing security headers.

Step-by-Step Instructions

  1. Copy HTTP headers from browser DevTools or curl output
  2. Paste them into the input area (Name: Value format, one per line)
  3. Click Parse Headers to analyze them
  4. Read the explanation for each header

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