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Nightingale vs Hoppscotch: catalog facts
Nightingale	Hoppscotch
Free Available from the Microsoft Store and GitHub releases.	Freemium Free and open source under the MIT licence, including self-hosting. A paid cloud plan…
Windows	Windows, macOS, Linux, Web, Self-hosted, Browser extension
Native Windows app that is light on resources Variables and environments	Opens in a browser tab with nothing to install HTTP, GraphQL, WebSocket, Server-Sent Events, Socket.IO and MQTT
Windows only Smaller feature set than larger API platforms	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
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 21, 2026

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