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Hello HTTPInsomnia
Free

Free and open source under the Apache 2.0 licence.

 Freemium

Free to use, with a free account unlocking most features. Kong sells paid plans for teams…

Windows, macOS, Linux Windows, macOS, Linux
  • Supports HTTP, WebSocket, GraphQL subscriptions and gRPC
  • Desktop app rather than a cloud service
  • REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client
  • Local Vault and Git Sync mean the cloud is optional
  • Built mainly around one developer's needs
  • Smaller ecosystem than Postman or Insomnia
  • Most features expect an account, even though a Scratch Pad works without one
  • The 2023 move to account-first storage cost it a lot of goodwill
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 License: Apache-2.0
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.