BigBlueButton

The platform provides a self‑hosted, open‑source virtual classroom that lets teachers and learners interact in real time. Audio, video, screen sharing, slide presentation with whiteboard annotations, and text chat are all supported, while moderators can view live analytics through a dedicated dashboard. Sessions can be recorded for later playback, and the system generates analytics to help identify student performance.

Educators can increase engagement using built‑in tools such as polls, emoji reactions, multi‑user whiteboards, shared notes, and breakout rooms for small‑group work. The software is designed for a range of educational scenarios, including one‑to‑one tutoring, flipped‑classroom recordings, group collaboration, and large‑scale online classes.

The solution runs on Ubuntu 22.04 and can be installed with a provided script in about half an hour. Documentation covers architecture, APIs, and the default GreenLight front‑end, and the project is released under LGPL‑3.0, offering a free, non‑subscription model suitable for schools, universities, and other organizations.