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httpYacVenom
Free

Free to use.

 Free

Free and open source, maintained by OVHcloud.

Command line Windows, macOS, Linux, Command line
  • Plain-text request files that fit in version control
  • REST, SOAP, GraphQL and gRPC in one tool
  • Tests are written as declarative files that are easy to review
  • Several executors including HTTP, scripts, web and IMAP
  • No standalone graphical app; works through the CLI or VS Code
  • Scripting requires familiarity with Node.js
  • No graphical interface for building requests
  • Test file format takes some learning
Downloadable app Downloadable app
Open source Open source
License not stated License: Apache-2.0
No account needed No account needed
Works offline Not stated if it works offline

Checked September 23, 2026

Checked October 1, 2026

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