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TestMace vs Insomnia: catalog facts
TestMaceInsomnia
Free

Distributed as freeware.

Freemium

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

Windows, macOS, Linux, Command line Windows, macOS, Linux
  • Graphical test editor alongside JavaScript tests
  • Variables, authentication and API import
  • REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client
  • Local Vault and Git Sync mean the cloud is optional
  • Closed source
  • The site gives no release dates or changelog
  • 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
Closed source Open source
License: Freeware 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.