Self-hosted projects tagged “Real Time Chat”

Rocket.Chat is an open-source communications platform for secure team messaging, channels, DMs, voice/video, integrations, and customer omnichannel support.

Actively maintained

Alternative to:

Rocket.Chat Cloud+19

Open-source, self-hosted messaging platform for secure team collaboration with real-time chat, audio calls, screen sharing, and integrations.

Actively maintained

Alternative to:

Slack+19

Open-source team chat server with topic-based threading for focused, asynchronous, and real-time communication in distributed teams.

Apache-2.0Actively maintained

Alternative to:

Zulip Cloud+19

Element is a Matrix client for secure team messaging and collaboration, offering end-to-end encrypted chats and calls with interoperability across the Matrix network.

AGPL-3.0Actively maintained

Alternative to:

Element Matrix (Hosted)+19

Open-source, Go-based real-time messaging server for pub/sub and live updates; supports WebSocket, SSE, gRPC and brokers (Redis, NATS) with official SDKs.

Apache-2.0Actively maintained

Alternative to:

Centrifugo Cloud+4

Spacebar is an open source, self-hostable Discord-compatible communication platform with text chat, voice, and video, designed to work with existing clients and bots.

AGPL-3.0Actively maintained

Alternative to:

Discord+19

Self-hosted web-based IRC client with multi-user support, persistent connections, and a responsive UI for desktop and mobile.

MITActively maintained

Alternative to:

The Lounge Cloud+3

Open-source, local-first Slack and Notion alternative combining team chat, rich docs, databases, and file management with offline-first sync and self-hosting.

Apache-2.0Actively maintained

Alternative to:

Notion+19

Stoat is an open-source, self-hostable chat platform for communities and teams, offering text channels, permissions, moderation tools, and a web app.

Actively maintained

Alternative to:

Discord+13

Stoat (formerly Revolt) is an open-source chat platform for communities and teams with channels, direct messages, roles/permissions, moderation tools, and bot support.

AGPL-3.0Actively maintained

Alternative to:

Discord+11

Movim is a federated social platform and web-based XMPP client for blogging, chat, communities, and real-time messaging with a responsive cross‑platform interface.

AGPL-3.0Actively maintained

Alternative to:

Element Matrix (Hosted)+15

Coral (Talk) is an open-source commenting and moderation platform for publishers, offering real-time conversations, GraphQL APIs, moderation workflows, and extensible plugins.

Actively maintained

Alternative to:

Disqus+8

Web app for synchronized group watching: per-channel playlists, real-time chat, moderation, and multi-source media playback.

Slowing down

Alternative to:

Watch2Gether

Open Source Social Network (OSSN) is PHP-based social networking software to build your own community site with profiles, newsfeed, groups, chat, photos, and admin tools.

Actively maintained

Alternative to:

Threads+1

Glowing Bear is a browser-based WeeChat client that connects to WeeChat via the relay plugin, providing a modern interface for IRC from any device.

GPL-3.0Actively maintained

Alternative to:

IRCCloud+3

Lightweight, customizable Discord music bot in Python. Supports YouTube, SoundCloud, Spotify, Twitch, Lavalink playback, playlists, lyrics, slash commands and Docker.

MITActively maintained

Alternative to:

FredBoat+2

UnrealIRCd is an open-source, modular IRC server implementing IRCv3, TLS, anti-spam/flood protections, GeoIP and admin APIs for running public or private IRC networks.

Self-hosted, open-source XMPP-based messaging server providing end-to-end encryption, multi-device sync, federation, secure backups, and integrated WebRTC audio/video calling.

Apache-2.0Actively maintained

Alternative to:

WhatsApp+17

Lightweight web application for synchronized video playback with chat, leader-controlled playback, subtitle/audio track support and Docker deployment.

MITActively maintained

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Watch2Gether+3

Decentralized, browser-first chat focused on privacy and peer-to-peer interactions. Supports end-to-end encryption, WebRTC file sharing, voice/video calls, mixed-reality spaces and a webtop environment.

GPL-3.0Actively maintained

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Slack+10

Community-focused server for private photo/video backup, albums, chat and audio/video calls with mobile app support and S3-compatible storage.

MITActively maintained

Alternative to:

Google Photos+10

An IRC network implementation in Go that uses the Raft consensus algorithm to eliminate netsplits and provide transparent client failover via a bridge.

BSD-3-ClauseActively maintained

Alternative to:

IRCCloud+3

Open eClass is a PHP-based Learning Management System (LMS) for creating and administering online courses, assessments, multimedia content and communication tools for institutions.

Actively maintained

Alternative to:

Canvas LMS+12

Atria is an AGPL-3.0 open-source platform for managing hybrid events, sessions, sponsors, and real-time attendee networking with chat and discovery tools.

AGPL-3.0Slowing down

Alternative to:

Whova+16

Libervia is a modular XMPP-based communication suite offering chat, microblogging, file sharing, and other social features across web, desktop, and CLI interfaces.

Activity unknown

Alternative to:

Element Matrix (Hosted)+19

Salut à Toi (SàT) is a self-hostable, XMPP-based communication suite with web, desktop, and CLI frontends, supporting chat and collaborative features via plugins.

Activity unknown

Alternative to:

Element Matrix (Hosted)+13