Startups

Galene is a free and open source self-hosted WebRTC videoconference system (client and server), a self-hosted alternative to Zoom or BigBlue

BigBlueButton is an open source virtual classroom software.

Yarn.social is a decentralised ecosystem of open specifications, clients, servers and services for social micro-blogging — built on twtxt, p

Create a Q&A Forum for your coworkers, un-block each other.

Scoold is open source and works great as a Q&A platform, forum, knowledge base or customer support tool.

The original Pixelfed instance, operated by the main developer @dansup

A link aggregator, a forum, a hub of social interaction and information, built for the fediverse.

Discover OSSN, the open source social media network software that empowers you to build your own social community with open source social ne

NodeBB Forum Software - The Modern Discussion Platform

The official homepage for MyBB, a free and open source PHP forum software.

Movim is a kickass distributed blogging and messaging platform built on the industry-standard XMPP protocol

Misskey.io は、株式会社MisskeyHQが運営する地球で生まれた分散マイクロブログSNSです。<br> Fediverse（様々なSNSで構成される宇宙）の中に存在するため、他のSNSと相互に繋がっています。 <br> 暫し都会の喧騒から離れて、新しいインターネットに

Misago is fully featured forum application written in Python and ES6, powered by Django and React.js.

Learn more about Mastodon, the radically different, free and open-source decentralized social media platform.

Make important decisions together without endless meetings.

Lemmy

Iceshrimp.NET - This repository contains our efforts to continue the Iceshrimp project's legacy - in the form of an entirely new codebase, w

HumHub is the software that digitizes your organization.