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The Lounge vs senpai: catalog facts
The Lounge	senpai
Free Free and open source under the MIT licence.	Free Free, with source code on sourcehut.
Web, Self-hosted	Windows, Linux, Command line
Always connected, no separate bouncer needed Responsive interface for phones and desktops	History and search fetched from the bouncer File upload with drag and drop
Requires running your own Node.js server IRC only	Works best with a bouncer supporting modern IRCv3 extensions Terminal only
Self-hosted	Downloadable app
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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