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Advanced REST ClientGetIt
Free

Free to download; the source is published on GitHub.

 Free

Free and open source under the MIT license.

macOS Linux
  • Dedicated desktop app for manual HTTP and REST testing
  • Source code is public and the repository is still active
  • Saves requests as readable JSON files
  • Supports custom headers, cookies, and POST data
  • No releases published on the GitHub releases page
  • License is not clearly identified in the repository metadata
  • Downloadable builds are listed for Linux
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-3.0+
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.