Jitsi Meet

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.