Element Web
Matrix & XMPPGlossy Matrix client for the web and desktop
Replaces Slack, Discord
Discord is a popular proprietary communication platform offering text, voice, and video chat organized into servers and channels. It is widely used by communities and gamers. These open-source apps let you replace Discord with software you host and control yourself.
Glossy Matrix client for the web and desktop
Replaces Slack, Discord
Open-source platform for building online communities
Replaces Discord, Discourse
Low-latency, high-quality voice chat application
Replaces Discord, TeamSpeak
Second-generation Matrix homeserver written in Go
Replaces Slack, Discord
Reference homeserver for the Matrix network
Replaces Slack, Discord
Simple, elegant and secure Matrix client
Replaces Slack, Discord
Modern IRC server with IRCv3 and bouncer features
Replaces Slack, Discord
Open-source chat platform for communities
Replaces Discord
Peer-to-peer encrypted messaging protocol and core
Replaces Skype, Discord
Desktop Matrix client with native Qt interface
Replaces Slack, Discord
Simple, fast and reliable Matrix homeserver in Rust
Replaces Slack, Discord
Self-hostable, open-source Discord-compatible chat backend
Replaces Discord
Terminal-based Matrix client written in Go
Replaces Slack, Discord
Modular C++ Internet Relay Chat daemon
Replaces Slack, Discord
Privacy-focused Matrix client built with Flutter
Replaces WhatsApp, Discord
Hosted-anywhere modern web IRC client
Replaces Slack, Discord
Second-generation Matrix homeserver written in Go
Replaces Slack, Discord
Federated social networking toolkit for communities
Replaces Facebook Groups, Discord
GNOME-native Matrix messaging client
Replaces Slack, Discord
Browser-based client for Mumble voice servers
Replaces Discord, TeamSpeak
Community-maintained Rust Matrix homeserver
Replaces Slack, Discord
Self-hosted multi-room chat with markdown and code blocks
Replaces Discord, Slack
Highly configurable open-source IRC server
Replaces Slack, Discord
High-performance Matrix homeserver written in C++
Replaces Slack, Discord
E2E-encrypted personal-server messaging app
Replaces Discord, Slack
IRCv3 server daemon used by Libera.Chat
Replaces Slack, Discord
IRC server daemon for large networks
Replaces Discord, Slack
Lightweight and stable IRC server daemon
Replaces Slack, Discord
Cross-platform Matrix client built with Flutter
Replaces Discord, Slack
IRC server daemon used by the Undernet network
Replaces Discord, Slack
XMPP client for team messaging
Replaces Discord, Facebook Messenger
Well-maintained fork of the Conduit Matrix homeserver
Replaces Slack, Discord
No apps match these filters.
Moving off Discord means trading a managed subscription for a service you run yourself. The payoff is ownership: no per-seat pricing, no vendor lock-in, and full control of your data. Start with the option above that matches your setup-difficulty comfort level — every app links to a detailed specs page and head-to-head comparisons.