- [Movim](https://movim.eu/) - Modern, federated social network based on XMPP, with a fully featured group-chat, subscriptions and microblogging. ([Source Code](https://github.com/movim/movim)) `AGPL-3.0``PHP`
- [NodeBB](https://nodebb.org/) - Node.js based forum software built for the modern web. ([Source Code](https://github.com/NodeBB/NodeBB)) `GPL-3.0``Nodejs`
- [Nitter](https://nitter.net) `⚠` - A alternative front end to twitter. ([Source Code](https://github.com/zedeus/nitter)) `AGPL-3.0``Nimble`
- [Orange Forum](http://www.goodoldweb.com/) - Orange Forum is an easy to deploy forum that has minimal dependencies and uses very little javascript. ([Source Code](https://github.com/s-gv/orangeforum)) `BSD-3-Clause``Go`
- [OSSN](https://www.opensource-socialnetwork.org/) - Open Source Social Network (OSSN) is a social networking software written in PHP. It allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests. ([Source Code](https://github.com/opensource-socialnetwork/opensource-socialnetwork)) `GPL-2.0``PHP`
- [Patchwork](https://github.com/ssbc/patchwork) - Decentralized messaging and sharing app built on top of Secure Scuttlebutt (SSB). `AGPL-3.0-only``NodeJS`