Self-Hosted Software Communication - Social Networks and Forums

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1. Abilian SBE

Open Source Collaboration and Social Networking framework and platform. `LGPL-2.1` `Python`

2. Anahita

Open Source Social Networking Framework and Platform. ([Source Code](https://github.com/anahitasocial)) `GPL-3.0` `PHP`

3. AsmBB

A fast, SQLite-powered forum engine written in ASM. ([Source Code](https://asm32.info/fossil/asmbb/index)) `EUPL-1.2` `Assembly`

4. bbPress

bbPress is forum software with a twist from the creators of WordPress. Easily setup discussion forums inside your WordPress.org powered site. ([Source Code](https://bbpress.trac.wordpress.org/browser/trunk)) `GPL-2.0` `PHP`

5. Bibliogram

An alternative front-end for Instagram. ([Source Code](https://sr.ht/~cadence/bibliogram/)) `AGPL-3.0` `Nodejs`

6. Bootcamp

Enterprise social network. ([Source Code](https://github.com/vitorfs/bootcamp)) `MIT` `Python`

7. Buddycloud

Tools, libraries, services and a community to build user-to-user, group and social messaging into your app. Saves time. Scales up. Supports you. ([Source Code](https://github.com/buddycloud)) `Apache-2.0` `Java`

8. BuddyPress

Powerful plugin that takes your WordPress.org powered site beyond the blog with social-network features like user profiles, activity streams, user groups, and more. ([Source Code](https://github.com/buddypress/BuddyPress)) `GPL-2.0` `PHP`

9. Cactus Comments

Cactus Comments is a federated comment system for the open web built on Matrix. ([Demo](https://cactus.chat/demo/), [Source Code](https://gitlab.com/cactus-comments/)) `GPL-3.0` `Python`

10. cartulary

RSS reader, readability tool, article archiver, microblogger, social graph manager and reading list manager. `CDDL-1.0` `PHP`

11. Commento

Commento is a discussion platform that you can embed on your blog, news articles, and any place where you want your readers to add comments. `MIT` `Go`

12. schnack

Schnack is simple self-hosted node app for Disqus-like drop-in commenting on static websites. `Lil licence v1` `Node.js`

13. Coral

A better commenting experience from Vox Media. ([Source Code](https://github.com/coralproject/talk)) `Apache-2.0` `Nodejs`

14. diaspora*

Distributed social networking server. ([Demo](https://podupti.me/go.php), [Source Code](https://github.com/diaspora/diaspora)) `AGPL-3.0` `Ruby`

15. Discourse

Advanced forum / community solution based on Ruby and JS. ([Demo](https://try.discourse.org/), [Source Code](https://github.com/discourse/discourse)) `GPL-2.0` `Ruby`

16. dyu comments

Real-time, markdown-enabled comment engine powered by leveldb. ([Demo](https://dyu.github.io/comments/real-time/)) `Apache-2.0` `Java`

17. Elgg

Powerful open source social networking engine. ([Source Code](https://github.com/Elgg/Elgg)) `GPL-2.0` `PHP`

18. EpochTalk

Next Generation Forum Software. `MIT` `Nodejs`

19. Flarum

Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again. ([Source Code](https://github.com/flarum/flarum)) `MIT` `PHP`

20. FlaskBB

FlaskBB is forum software written in Python using the microframework Flask. You can easily create new topics, posts and send other users private messages. It also includes basic administration and moderation tools. ([Source Code](https://github.com/flaskbb/flaskbb)) `BSD-3-Clause` `Python`

21. FluxBB

Fast, light, user-friendly forum software for your website. ([Source Code](https://github.com/fluxbb/fluxbb)) `GPL-2.0` `PHP`

22. Friendica

Social Communication Server. ([Source Code](https://github.com/friendica/friendica)) `AGPL-3.0` `PHP`

23. Glosa

Open source commentary system easy to integrate with static pages. You can import from Disqus. `GPL-3.0` `Java`

24. GNU social

Social communication software for both public and private communications. ([Source Code](https://notabug.org/diogo/gnu-social)) `AGPL-3.0` `PHP`

25. Gosora

Gosora is an ultra-fast and secure forum software written in Go that balances usability with functionality. ([Source Code](https://github.com/Azareal/Gosora)) `GPL-3.0` `Go`

26. Hubzilla

Decentralized identity, privacy, publishing, sharing, cloud storage, and communications/social platform. ([Source Code](https://framagit.org/hubzilla/core)) `MIT` `PHP`

27. HumHub

Flexible kit for private social networks. ([Source Code](https://github.com/humhub/humhub)) `AGPL-3.0` `PHP`

28. Isso

Lightweight commenting server written in Python and Javascript. It aims to be a drop-in replacement for Disqus. ([Source Code](https://github.com/posativ/isso)) `MIT` `Python`

29. Lemmy

A link aggregator / reddit clone for the fediverse. Reddit alternative built in Rust. ([Source Code](https://github.com/LemmyNet/lemmy)) `AGPL-3.0` `Rust`

30. Libreddit

Private front-end for Reddit written in Rust. ([Source Code](https://github.com/spikecodes/libreddit)) `AGPL-3.0` `Rust`

31. Loomio

Loomio is a collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them. ([Source Code](https://github.com/loomio/loomio)) `AGPL-3.0` `Ruby`

32. Mastodon

Federated microblogging server, an alternative to GNU social. ([Source Code](https://github.com/tootsuite/mastodon)) `AGPL-3.0` `Ruby`

33. Misago

Misago is fully featured modern forum application that is fast, scalable and responsive. ([Source Code](https://github.com/rafalp/Misago)) `GPL-2.0` `Python`

34. Misskey

Decentralized app-like microblogging server/SNS for the Fediverse, using the ActivityPub protocol like GNU social and Mastodon. ([Source Code](https://github.com/misskey-dev/misskey)) `AGPL-3.0` `Nodejs`

35. Movim

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`

36. MyBB

Free, extensible forum software package. ([Source Code](https://github.com/mybb/mybb)) `LGPL-3.0` `PHP`

37. Nitter

A alternative front end to twitter. ([Source Code](https://github.com/zedeus/nitter)) `AGPL-3.0` `Nimble`

38. NodeBB

Forum software built for the modern web. ([Source Code](https://github.com/NodeBB/NodeBB)) `GPL-3.0` `Nodejs`

39. Orange Forum

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`

40. OSSN

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`

41. phpBB

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`

42. PixelFed

Pixelfed is an open-source, federated platform alternate to Instagram. ([Source Code](https://github.com/pixelfed/pixelfed)) `AGPL-3.0` `PHP`

43. Pleroma

Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible. ([Source Code](https://git.pleroma.social/pleroma/pleroma)) `AGPL-3.0` `Elixir`

44. Pump.io

Stream server that does most of what people really want from a social network. ([Source Code](https://github.com/pump-io/pump.io)) `Apache-2.0` `Nodejs`

45. remark42

A lightweight and simple comment engine, which doesn't spy on users. It can be embedded into blogs, articles or any other place where readers add comments. ([Demo](https://remark42.com/demo/), [Source Code](https://github.com/umputun/remark42)) `MIT` `Go`

46. rss2twtxt

An RSS/Atom feed aggregator command-line tool and web service that consumes RSS/Atom and produces twtxt.net feeds for consumption by twtxt clients. ([Demo](https://feeds.twtxt.net)) `MIT` `Go`

47. Satellity

Yet another open source forum written in Golang, React and PostgreSQL. ([Source Code](https://github.com/satellity/satellity)) `MIT` `Go`

48. Scoold

Stack Overflow in a JAR. An enterprise-ready Q&A platform with full-text search, SAML, LDAP integration and social login support. ([Demo](https://live.scoold.com), [Source Code](https://github.com/Erudika/scoold)) `Apache-2.0` `Java`

49. Simple Machines Forum

Free, professional grade software package that allows you to set up your own online community within minutes. ([Source Code](https://github.com/SimpleMachines/SMF2.1)) `BSD-3-Clause` `PHP`

50. Socialhome

Federated and decentralized profile builder and social network engine. ([Demo](https://socialhome.network/), [Source Code](https://github.com/jaywink/socialhome)) `AGPL-3.0` `Python`

51. Talkyard

Create a community, where your users can suggest ideas and get questions answered. And have friendly open-ended discussions and chat (Slack/StackOverflow/Discourse/Reddit/Disqus hybrid). ([Demo](https://www.talkyard.io/forum/latest), [Source Code](https://github.com/debiki/talkyard)) `AGPL-3.0` `Scala`

52. Teddit

Alternative Reddit front-end focused on privacy. ([Source Code](https://codeberg.org/teddit/teddit)) `AGPL-3.0` `Nodejs`

53. Thredded

Forums, feature-rich and simple. `MIT` `Ruby`

54. Tokumei

Anonymous microblogging platform. ([Source Code](https://gitlab.com/tokumei/tokumei)) `ISC` `rc`

55. twister

Fully decentralized P2P microblogging platform leveraging the free software implementations of Bitcoin and BitTorrent protocols. ([Source Code](https://github.com/miguelfreitas/twister-core)) `MIT` `C++`

56. twtxt.net

a Self-Hosted, Twitter™-like Decentralised micro-logging platform. No ads, no tracking, your content, your data. ([Source Code](https://git.mills.io/yarnsocial/yarn)) `MIT` `Go`

57. Vanilla Forums

Simple and flexible forum software. ([Source Code](https://github.com/vanilla/vanilla)) `GPL-2.0` `PHP`

58. Zusam

Free and open-source way to self-host private forums for groups of friends or family. ([Demo](https://demo.zusam.org), [Source Code](https://github.com/zusam/zusam)) `AGPL-3.0` `PHP`