A collaborative web application (virtual office) presented as a 16-bit RPG video game
A high-performance Internet Relay Chat (IRCv3) server for UNIX-like and Windows systems
Mumble is an open-source, low-latency, high quality voice chat software.
Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)
A glossy Matrix collaboration client for the web.
Official successor to conduwuit
bridge between mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, nextcloud, mumble, vk and more with REST API (mattermost not required!)
fast & lightweight self-hosted messenger
MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.
An XMPP server licensed under the Open Source Apache License.
Unofficial open source mtproto server written in golang with compatible telegram client.
Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)
SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
Official repository for the ZNC IRC bouncer
💬 Modern, responsive, cross-platform, self-hosted web IRC client
Secure peer-to-peer chat that is serverless, decentralized, and ephemeral
An AI chat bot for small and medium-sized teams, supporting models such as Deepseek, Open AI, Claude, and Gemini. 专为中小团队设计的 AI 聊天应用，支持 Deepseek、Open AI、Claude、Gemini 等模型。
The Secure CommsOS™ for mission-critical operations
Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.
Synapse: Matrix homeserver written in Python/Twisted + Rust
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