Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.
The Secure CommsOS™ for mission-critical operations
best way to save what you love
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots
⚡️⚡️⚡️ Self-hosted collaborative bookmark manager to collect, read, annotate, and fully preserve what matters, all in one place.
Etherpad: A modern really-real-time collaborative document editor.
Open-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms on Windows, Linux, and macOS
Sync-in Server · Sovereign platform for file storage, sharing, synchronization, and collaboration.
Markdown note-taking web application designed for simplicity
tine groupware main repository
