API Playground

API Playground

Compose and validate an HTTP request locally, then export its JSON configuration or a fetch example. Requests are not sent and credentials are not stored.

This tool processes your data in your browser. Files and text are not uploaded. Browser processing
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How to use

  1. Use the input controls to provide the content or file.
  2. Adjust options if available, then run the tool.
  3. Review the result and copy or download it.

Features

  • Local browser processing
  • No account required
  • Works on mobile and desktop

Frequently asked questions

Is my data uploaded?

For browser-processed tools, your data stays in this browser. The Public IP Checker is the exception and clearly discloses its provider.