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Developer & data · By AIXpress

HTTP Header Block Parser

Parse an HTTP request or response header block into JSON with normalized names and repeated header values preserved as arrays.

Developers inspecting pasted HTTP headers from debugging tools and logs.

Free to use. Your inputs are processed in this browser and are not included in usage analytics.

An optional HTTP request/status line may precede headers. Do not include a message body.

How to use http header block parser

  1. Paste one HTTP header block with an optional request or status line.
  2. Parse field names and colon-separated values.
  3. Inspect lowercase names and arrays for repeated headers such as Set-Cookie.

What to know about the result

  • Values keep internal punctuation, colons, and case. Leading and trailing HTTP whitespace is trimmed; repeated fields are not comma-joined.
  • CRLF and LF line endings are supported. Message bodies, folded headers, invalid names, and embedded control characters are rejected.

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For the next step, explore PDF tools and small business templates.