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BigBlueButton

Open-source virtual classroom for online teaching

★ Stars9.2k9,247 on GitHub
Last commit16 Oct 2026
LicenceLGPL-3.0SPDX, from the repository
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From GitHub, fetched 19 Oct 2026.

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BigBlueButton is an open-source virtual classroom with shared slides, breakout rooms, whiteboard and recording — built for online teaching rather than generic meetings.

Free alternative to

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