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Hello HTTPHoppscotch
Free

Free and open source under the Apache 2.0 licence.

 Freemium

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

Windows, macOS, Linux Windows, macOS, Linux, Web, Self-hosted, Browser extension
  • Supports HTTP, WebSocket, GraphQL subscriptions and gRPC
  • Desktop app rather than a cloud service
  • Opens in a browser tab with nothing to install
  • HTTP, GraphQL, WebSocket, Server-Sent Events, Socket.IO and MQTT
  • Built mainly around one developer's needs
  • Smaller ecosystem than Postman or Insomnia
  • 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
Open source Open source
License: Apache-2.0 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.