Mycelium (formerly Disclone) is a feature-rich, open source communication app and personal-collaborative hub (drive/notes...).

Nerimity is described as 'Open-source, donation-funded chat platform focused on community engagement, featuring animated avatars, custom emojis, profile personalization, posts, and group chat' and is a Group Chat app in the social & communications category. There are more than 25 alternatives to Nerimity for a variety of platforms, including Web-based, Android, iPhone, Linux and Windows apps. The best Nerimity alternative is Telegram, which is free. Other great apps like Nerimity are Element, Discord, Matrix and X.
Mycelium (formerly Disclone) is a feature-rich, open source communication app and personal-collaborative hub (drive/notes...).

Kloak is a privacy-first communication platform built by people who actually use it. No ads. No data harvesting. No bloat. Just communication that works.



SadnessChat SadnessChat is a free, real-time chat platform built for real conversations. Whether you're hanging out with friends or building a community, SadLounge has everything you need.



FluxCap is an independent desktop client designed to connect seamlessly with the Fluxer network. Built with Electron, it provides a dedicated, fast, and customizable user interface for Windows, taking Fluxer out of your browser and directly onto your desktop.



Colibri is an open source chat platform built on the AT protocol for communities big and small. It gives you the ability to create communities, manage members, and communicate through text, voice, and forum channels, all while maintaining true ownership of your data.




Twake Chat is a secure, open source messaging platform designed for enterprises. It offers seamless integration of chat, video conferencing, file sharing, and email, and more.

Campfire is an installable, self-hosted group chat system. Easily invite people. Make rooms. @mentions, DMs, and mobile support. The basics done right. And since you get the code and host it yourself, you can customize it however you’d like for your own use.



Facilitates community collaboration through voice, video, and text chat, integrated docs and tasks, configurable channels, roles, and permissions, seamless mobile and desktop access, rapid message reactions, file sharing, and notification controls for groups.




Common Ground is a browser-based, open-source social platform for communities, built as a robust alternative to Discord.


