OnyxYour people, your server,
your conversations.
Onyx is a fast, private chat app with servers, channels, direct messages, and crystal-clear voice and video. Everything runs on infrastructure you control.
Also available as a Flatpak. Latest version 1.1.39.
Built for how groups actually talk
Text, voice, video and screen sharing in one place, without handing your data to a third party.
End-to-end encrypted calls
Voice and video use MLS group keys negotiated between participants. The server forwards media it cannot decrypt.
Encrypted at rest
Messages and attachments are stored encrypted on the server, with a keyed blind index so search still works.
Voice that sounds right
Noise suppression, automatic level normalization and per-person volume, so everyone comes through clearly.
Screen and video sharing
Share a window or your whole screen with a click, with adaptive quality that keeps streams smooth.
Servers, roles and channels
Organize communities with categories, roles and permissions, invites, and per-server notification rules.
Browser or desktop
Jump in from any modern browser, or install the desktop app for the full experience including auto-updates.
Download Onyx
These links always deliver the latest release.