Discover quality open-source projects, submit projects anonymously, and claim and edit your own project.
A little curiosity. A world of open source.
THE FIRST COLLECTIONMattermost is an open core, self-hosted collaboration platform offering team chat, workflow automation, voice calling, screen sharing and AI integration. Written in Go and React, it runs as a single Linux binary backed by PostgreSQL, with monthly MIT-licensed releases and native mobile and desktop clients.
Zulip is an open-source team chat application featuring unique topic-based threading designed for both live and asynchronous communication.
Bit is an open-source build system that organizes source code into reusable components and composes them into applications, with support for NodeJS, React, Angular, Vue, NextJS and more, plus MCP integration for AI agents.
Drawnix is an open-source all-in-one whiteboard tool supporting mind maps, flowcharts, and freehand drawing, designed to provide a flexible and extensible space for creative expression.
BigBlueButton is an open-source web conferencing system for virtual classrooms, supporting real-time audio/video sharing, slides with whiteboard annotations, chat, screen sharing, polling, breakout rooms, recording, and learning analytics dashboards.
cobalt is an open-source media downloader that lets you paste a link and get the file, with no ads, trackers, or paywalls. It runs as a monorepo with an API, web frontend, and docs for self-hosting.
TroubaStack is a self-hosted collaborative annotation system for sheet music and lyrics, featuring a web editor, a Go-based sync server, and an offline mobile presenter.
An open-source virtual whiteboard designed for creating hand-drawn style diagrams, wireframes, and sketches with collaborative and encrypted features.
tldraw is an open-source React SDK for building infinite canvas apps, offering drawing/diagramming tools, self-hostable multiplayer sync, custom shapes/tools, and AI integration starter kits.
Profer is a local-first AI Agent desktop app built on the Claude Agent SDK and Pi dual runtime, supporting multi-model integration, collaborative sub-agents, scheduled automation, mobile remote access, and team workspaces.
Nextcloud is a self-hosted server platform designed to provide a secure environment for storing, syncing, and sharing files, contacts, and calendars.
Rocket.Chat is a secure, open-source communications platform developed in TypeScript, designed for organizations requiring high standards of data protection and customizable team collaboration.
Etherpad is a self-hosted, real-time collaborative document editor with per-author attribution, full revision history and a timeslider. Apache-2.0 licensed, extensible via plugins, translated into 105 languages, and deployable via one-line installer or Docker.
Linkwarden is a self-hosted, collaborative bookmark manager designed to collect, annotate, and preserve webpages to prevent link rot.
