API

HTTP Header Parser

Parse raw headers into ordered entries and a count, preserving duplicate headers and their original casing locally.

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What does this tool do?

Parse raw headers into ordered entries and a count, preserving duplicate headers and their original casing locally. Inputs: Raw HTTP headers. Outputs: Header entries, Header count.

How to use it?

Enter raw http headers, then choose “Parse”. Copy copies the displayed output. Clear releases inputs/results and resets options.

All processing is local. This tool does not send network requests, execute cURL, evaluate JavaScript or run GraphQL operations. Generated code and response markup are inert text. Inputs are not logged, saved or added to the route.

Header names are case-insensitive; no request is sent. Obsolete folded continuation lines are unsupported.