Compare software

Yaak vs Hoppscotch: catalog facts
Yaak	Hoppscotch
Freemium Yaak is MIT licensed and free to build and use. Development is funded by…	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
Requests are stored as files on your machine, so a git repository is the shared collection REST, GraphQL, gRPC, WebSocket and Server-Sent Events in one client	Opens in a browser tab with nothing to install HTTP, GraphQL, WebSocket, Server-Sent Events, Socket.IO and MQTT
A much younger project than Postman, with a smaller community No hosted collaboration features if that is what you actually want	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: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 21, 2026

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