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Spacebar vs Stoat: catalog facts
Spacebar	Stoat
Free Free and open source, funded through Open Collective donations.	Free Free to use, with no ads according to the site.
Self-hosted	Windows, macOS, Linux, Android, iOS, Web
Aims for compatibility with the Discord client and API Runs on a server you control	Servers, channels, voice chat and file sharing in one app Role-based permissions and moderation tools for large communities
Still a reimplementation in progress, so compatibility may be incomplete Requires running and maintaining your own server	Requires an account to use Smaller user base than mainstream community chat apps
Self-hosted	Downloadable app, Web application
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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