The best open source alternative to Colanode is Huly. If that doesn't suit you, we've compiled a ranked list of other open source Colanode alternatives to help you find a suitable replacement.
Colanode alternatives are mainly Project Management Suites but may also be Collaborative Workspaces or Video Conferencing & Virtual Office Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Colanode.
Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and Notion.

Huly brings together the tools that most teams spread across four or five separate apps. Project management, real-time chat, collaborative documents, and a virtual office all live in one workspace. It's built for product and engineering teams who are tired of context-switching between a task tracker, a Slack alternative, and a Notion alternative.
The project management side covers what you'd expect from a modern tracker:
The virtual office is a built-in audio and video conferencing environment. Teams can create custom rooms for departments or recurring meetings, and invite guests without sending them to a separate tool. No third-party conferencing app required.
Documents in Huly support rich text, images, attachments, and code blocks. Live real-time collaboration means multiple people can edit simultaneously. You can tag teammates, link directly to issues, and assign action items from within a document, which keeps planning and execution connected. Version history tracks every edit.
The collaborative workspace also includes a unified inbox and instant notifications, so updates from tasks, documents, and chats surface in one place rather than scattered across tools.
Huly is self-hostable, which matters for teams with data residency requirements or those who simply want control over their infrastructure.