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Virtual whiteboard for sketching hand-drawn like diagrams

The communications platform that puts data protection first.

whiteboard SDK / infinite canvas SDK

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Shared data types for building collaborative software

Etherpad: A modern really-real-time collaborative document editor.

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

??????Self-hosted collaborative bookmark manager to collect, organize, and preserve webpages, articles, and documents.