Open Source Alternatives to Discord
Mattermost
Mission-critical collaboration for technical teams
★ 39,324 Updated: Oct 2026 Status: Active
Zulip
Chat for distributed teams.
★ 26,046 Updated: Oct 2026 Status: Active
Element
Secure collaboration and messaging
★ 13,563 Updated: Oct 2026 Status: Active
Spectrum
Chat-based community platform from the former Spectrum team
★ 10,818 Updated: Jul 2022 Status: Archived
Fosscord
Open-source Discord-compatible chat platform
★ 6,717 Updated: Apr 2026 Status: Slowing
Cinny
Matrix client for desktop and web
★ 3,933 Updated: Oct 2026 Status: Active
Revolt
An open-source, privacy-respecting chat platform prioritizing user freedom.
★ 2,321 Updated: Feb 2026 Status: Slowing
Movim
Decentralized social platform on XMPP
★ 2,064 Updated: Oct 2026 Status: Active
Cabal Desktop
P2P community chat platform
★ 914 Updated: Feb 2024 Status: Inactive
A
AJAX Chat
Customizable web chat in JavaScript and PHP
★ 550 Updated: Jul 2026 Status: Active
O
OpenChat
Free chat platform with threads, upvotes and RSS bots
Updated: Oct 2025 Status: Slowing