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Advanced REST ClientHoppscotch
Free

Free to download; the source is published on GitHub.

 Freemium

Free and open source under the MIT licence, including self-hosting. A paid cloud plan…

macOS Windows, macOS, Linux, Web, Self-hosted, Browser extension
  • Dedicated desktop app for manual HTTP and REST testing
  • Source code is public and the repository is still active
  • Opens in a browser tab with nothing to install
  • HTTP, GraphQL, WebSocket, Server-Sent Events, Socket.IO and MQTT
  • No releases published on the GitHub releases page
  • License is not clearly identified in the repository metadata
  • The browser version needs an extension or the desktop app to reach local services
  • Team collaboration features are the paid part
Downloadable app Web application, Downloadable app, Self-hosted, Browser extension
Closed source Open source
License not stated License: MIT
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

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