Open-source SpatialChat alternatives

Jitsi Meet is a collection of open-source projects for hosting video conferences. It works in all current browsers and has Android and iOS apps, and it can be used as a ready-made service or embedded into other web applications through web and native SDKs. It is built on WebRTC with a selective forwarding unit to scale to larger meetings.

Meetings offer HD audio and video, content sharing, raised hands and reactions, chat with private conversations, polls and virtual backgrounds. The hosted service at meet.jit.si is free to use, and the README says you can start a meeting after signing in with an account from a major provider. Mobile users can use the browser or the full-featured apps, which are also available from F-Droid, and open beta programs let early adopters test features.

If you prefer control over your data, Jitsi can be deployed on your own infrastructure, with documentation for running your own instance. Jitsi Meet is Apache-2.0 licensed and written in TypeScript. It suits organizations, schools and communities that want an alternative to proprietary meeting software.

SkyOffice is an open-source virtual office that runs in the browser. Team members appear as avatars in a 2D room and walk around it, and video chat starts automatically when they come close to each other. It was built for remote work and is aimed at distributed teams who want a more spatial alternative to scheduled video calls. It works on desktop browsers; mobile browsers are not supported.

Features include proximity chat, flexible screen sharing from computers in the office, multifunctional rooms, text chat with real-time dialog bubbles, custom and private rooms, and embedded whiteboards using the open-source WBO project. Movement uses WASD or arrow keys, with keys for sitting down, using a computer and opening chat.

The stack is Phaser 3 for the game engine, Colyseus as the WebSocket server framework, React and Redux on the front end, PeerJS for WebRTC video and screen sharing, and TypeScript on both client and server. The project is MIT licensed. To run it you start the server and the client separately with Node.js, and an official site hosts a public demo.