teams-alternative

A self-hosted home for your team's conversations, calls, meetings, and AI-assisted follow-up.

Cloudron.io app package for self-hosting Buzz.xyz Nostr relay, with storage management, backups, and auto-updates.

Self-hosted team chat — channels, threads, DMs, search, polls, SSO. One JVM, one Postgres, one systemd unit. Java 25, Spring Boot 4, embedded Lucene.

Self-hosted, open-source team chat for organizations up to ~200 people: channels, threads, calls, search, integrations and SSO in one container. AGPL-3.0. Chat so chat you and your team might chat yourselves.

Self-hosted team chat where customers join shared channels by link and AI agents work only in an internal backroom.

Team chat you own: an open-source, self-hostable Slack/Teams-class messenger in pure Rust (desktop, web, CLI, MCP).