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SpacebarFluxer
Free

Free and open source, funded through Open Collective donations.

 Free

Free and open source under the AGPL-3.0.

Self-hosted Linux, Android, Web, Self-hosted
  • Aims for compatibility with the Discord client and API
  • Runs on a server you control
  • Text, voice, video and screen sharing in one app
  • Can be self-hosted with data kept on your server
  • Still a reimplementation in progress, so compatibility may be incomplete
  • Requires running and maintaining your own server
  • Desktop app support for self-hosted servers is still coming
  • Younger and smaller than established chat platforms
Self-hosted Downloadable app, Web application, Self-hosted, Hosted service
Open source Open source
License not stated License: AGPL-3.0-or-later
Not stated if an account is needed Account needed
Not stated if it works offline Needs internet

Checked October 2, 2026

Checked October 1, 2026

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