FREE ONLINE TOOL

Free HTTP Header
Parser

Authorization, Proxy-Authorization, Cookie and Set-Cookie are hidden by default. HTTP field names are case-insensitive; HTTP/2/3 names are serialized lowercase.

About Free HTTP Header Parser

Parse raw request or response fields, preserve duplicates, flag framing and proxy-boundary hazards, classify security/CORS/cache fields, redact secrets, and export a normalized representation without sending your headers anywhere.

Workspace options

  • Paste start-line + headers, or headers only
  • Format

Available actions

  • Inspector
  • Security posture
  • Export
  • Guide
  • Load sample
  • Parse