Openmeetings
Video conferencing, instant messaging, whiteboard, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.
Alternatives
Tech stack
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Colanode
Open-source and local-first Slack and Notion alternative that puts you in control of your data
Zimbra Collaboration
Email, calendar, collaboration server with Web interface and lots of integrations.
Apache Solr
Enterprise search platform featuring full-text search, hit highlighting, faceted search, real-time indexing, dynamic clustering, and rich document (e.g., Word, PDF) handling.
BinPastes
Minimal pastebin supporting client-side encryption, fulltext search, one-time messages. Intended for one to few users looking for a simple pastebin deployment.
Citadel
Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more.
Cozy Cloud
Personal cloud where you can manage and sync your contact, files and calendars, and manage your budget with an app store full of community contributions.