- [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`
- [phpBB](https://www.phpbb.com/) - Flat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. ([Source Code](https://github.com/phpbb/phpbb)) `GPL-2.0``PHP`
- [PixelFed](https://pixelfed.social) - Pixelfed is an open-source, federated platform alternate to Instagram. ([Source Code](http://github.com/pixelfed/pixelfed)) `AGPL-3.0``PHP`