Mattermost
Video, audio & feedbackOpen-source team messaging for school staff and classes
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Rocket.Chat
Open-source communications platform
★ Stars46.3k46,288 on GitHub
Last commit19 Oct 2026
LicenceMITPer the project
View on GitHub ↗
From GitHub, fetched 19 Oct 2026.
Rocket.Chat is an open-source communications platform (chat, video) that schools and universities deploy for internal communication.
Free alternative to
In collections
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