Open Source Software Library

Privacy-focused personal knowledge management system with block-based editing and local-first storage.

Real-time Markdown editor with a clean desktop interface.

Distraction-free Markdown editor for desktop writing.

Collaborative Markdown editor for real-time note taking and document sharing.

Real-time collaborative text editor that can be self-hosted.

End-to-end encrypted collaborative office suite with documents, spreadsheets, forms, and shared drives.

Web-based collaborative document, spreadsheet, and presentation editors.

Presentation and meeting management system for organizations, assemblies, and conferences.

Lightweight videoconferencing server designed for groups, lectures, and interactive meetings.

WebRTC peer-to-peer video conferencing application with no mandatory account system.

Second-generation Matrix homeserver implementation written in Go.

Lightweight Matrix homeserver implementation written in Rust.

Lightweight Matrix client with a modern web interface.

Native desktop client for the Matrix protocol.

Open-source chat platform with servers, channels, messaging, and self-hosting.

Collaborative workspace combining team messaging, files, tasks, and calendars.

Audio, video, chat, and collaboration app for Nextcloud.

Extensible XMPP server focused on standards-compliant instant messaging and communication.

Scalable XMPP and messaging server supporting chat, presence, and real-time communication.

Federated link aggregation and discussion platform using ActivityPub.

Federated content aggregation, microblogging, and discussion platform compatible with ActivityPub.

Federated social networking platform with rich posting, reactions, and ActivityPub support.

Lightweight ActivityPub social server written in Go.

Federated blogging engine supporting collaborative publications and ActivityPub.

Command-line client for publishing posts to Write.as and WriteFreely instances.