Self-hosted projects tagged “Chat”

Open-source self-hosted fitness tracker for nutrition, exercise, water, and body metrics; includes AI nutrition chat, Docker deployment, web PWA and Android app.

Actively maintained

Alternative to:

Cronometer+9

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

Synapse is a Matrix homeserver implementation for running federated, secure real-time chat and collaboration on your own infrastructure.

AGPL-3.0Actively maintained

Alternative to:

Element Matrix (Hosted)+19

slskd is a modern Soulseek client-server daemon with a web UI for searching, downloading, and managing transfers, chats, and user shares from a browser.

AGPL-3.0Actively maintained

Alternative to:

SoulseekQt

Speakr is a self-hosted web app for recording or uploading audio, transcribing with AI (including diarization), and turning conversations into searchable, shareable notes.

AGPL-3.0Actively maintained

Alternative to:

Otter.ai+14

Tailchat is an open source team chat and collaboration platform with a strong plugin system, bot integrations, multi-group workspaces, and RBAC permissions.

Apache-2.0Actively maintained

Alternative to:

Slack+14

Ergo is a modern IRC server (ircd) written in Go, with integrated account management, history storage, bouncer-like features, and strong IRCv3 support.

MITActively maintained

Alternative to:

IRCCloud+12

Converse.js is an open-source, client-side web XMPP/Jabber chat app that can run standalone or be embedded into sites, with group chat and OMEMO encryption.

MPL-2.0Actively maintained

Alternative to:

IRCCloud+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

Openfire is an open source XMPP (Jabber) server for real-time messaging and collaboration, with a web admin console and a plugin ecosystem.

Apache-2.0Actively maintained

Alternative to:

Cisco Jabber+15

Scriberr is a self-hosted, privacy-focused AI transcription app for audio and video, with speaker diarization, word-level timestamps, summaries, and transcript chat.

MITSlowing down

Alternative to:

Otter.ai+6

Tox is a decentralized, peer-to-peer communication system for encrypted messaging, voice/video calls, screen sharing, and file transfers without central servers.

GPL-3.0Actively maintained

Alternative to:

Signal+12

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

Open-source browser-based peer-to-peer chat with E2E encryption, ephemeral messages, video/audio, screen sharing, direct file transfer, and iframe embedding.

GPL-2.0Actively maintained

Alternative to:

Zoom+15

Self-hosted live chat and customer support platform with website widgets, operator console, chatbots, omnichannel integrations, and optional voice/video/screensharing.

Apache-2.0Actively maintained

Alternative to:

Zendesk+19

Self-hostable web video conferencing app built on LiveKit, with large-meeting performance, screen sharing, chat, recordings, and transcription features.

MITActively maintained

Alternative to:

Zoom+19

Self-hosted Nextcloud Talk combines chat, video calls and webinars into one secure collaboration app.

AGPL-3.0Actively maintained

Alternative to:

Microsoft Teams+19

ZNC is an advanced IRC bouncer that stays connected to IRC networks, letting you reconnect from one or more clients and replay buffered messages you missed.

Apache-2.0Actively maintained

Alternative to:

IRCCloud+3

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

RetroShare is a decentralized friend-to-friend platform for encrypted chat, mail, forums, channels and secure file sharing, with optional Tor/I2P support.

Actively maintained

Alternative to:

Telegram+19

Self-hostable community discussion platform combining Q&A, forums, team chat, ideation/upvoting, and Disqus-style embedded blog comments.

AGPL-3.0Actively maintained

Alternative to:

Stack Overflow+19

MongooseIM is an open-source Erlang-based XMPP server designed for large-scale messaging, offering multi-tenant deployment, REST/GraphQL APIs, push, and robust observability.

Actively maintained

Alternative to:

Firebase+4

Self-hosted private AI tools for chat and document Q&A, supporting local Ollama inference or OpenAI-compatible APIs, with built-in authentication and user management.

AGPL-3.0Likely dormant

Alternative to:

ChatGPT+13

Friendica is a decentralized, federated social network server that connects to the Fediverse, offering posts, profiles, events, photos, and strong privacy controls.

AGPL-3.0Actively maintained

Alternative to:

Mastodon (mastodon.social)+8

Open-source self-hosted app to manage, track and journal houseplants with locations, tasks, inventory, calendar, reminders, group chat and plant identification.

MITActively maintained

Alternative to:

Planta+2

Briefing is a secure, anonymous WebRTC-based video group chat with text chat, screen sharing, and simple invite links, designed to run in modern browsers.

AGPL-3.0Slowing down

Alternative to:

Zoom+12

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

Slowing down

Alternative to:

Watch2Gether

GPL-licensed SIP server/proxy for carriers, ITSPs, and enterprises, enabling scalable signaling, routing, and application integration.

Self-hosted, lightweight federated messenger with end-to-end encrypted threads and optional WebRTC audio/video calling across independently hosted nodes.

Apache-2.0Actively maintained

Alternative to:

Signal+19

Self-hosted WebRTC videoconferencing server designed for lectures, meetings, and conferences, featuring chat, recording, screen sharing, moderation, and a built-in TURN server.

MITActively maintained

Alternative to:

Zoom+17