QADevBench

03 / API & Auth / http-header-generator

HTTP Header Generator

Build HTTP request headers for API testing.

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03 · Workspace

How to use

  1. 01Add headers manually, or use the Authorization and Content-Type presets.
  2. 02Edit any header name or value inline.
  3. 03Switch the output format between raw HTTP, cURL flags and a fetch() snippet.
  4. 04Copy the generated headers into your client or test suite.

What is this tool?

A header builder for API testing. It assembles request headers and outputs them in the format your tooling expects, warning about duplicate header names along the way. Everything runs locally in your browser.

Common use cases

  • Preparing headers for a new API integration
  • Converting a header set into a cURL command
  • Generating a fetch() config for frontend code
  • Documenting required headers for an endpoint

FAQ

Are header values validated?

Names and values are passed through as typed; duplicates are flagged.

Can I output cURL flags?

Yes, switch the output format to cURL.

Is anything uploaded?

No. Headers are built locally in your browser.

Can I include an auth header?

Yes, use the Bearer, Basic or API key presets.