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Spacebar vs Discord: catalog facts
Spacebar	Discord
Free Free and open source, funded through Open Collective donations.	Freemium Free to use, with an optional Nitro subscription.
Self-hosted	Windows, iOS, Web
Aims for compatibility with the Discord client and API Runs on a server you control	Drop-in voice channels without placing calls Low-latency screen and game streaming
Still a reimplementation in progress, so compatibility may be incomplete Requires running and maintaining your own server	Proprietary and centrally hosted Some features sit behind the Nitro subscription
Self-hosted	Downloadable app, Web application, Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
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.