Open‑source, self‑hosted collaboration app combines Slack chat and

Colanode is an open‑source collaboration tool that merges Slack‑style messaging with Notion‑style knowledge management, and it can be self‑hosted for full data control [1]. The founder, Hakan, created the project to eliminate the friction of switching between separate chat and documentation apps, and released the code under an Apache 2.0 license.

Key takeaways

• Colanode integrates real‑time chat and structured notes in a single platform [1]
• The architecture is “local‑first,” storing all reads and writes in a local SQLite database with sync via SQLite, Postgres and the Yjs CRDT library [1]
• The server can be deployed with Docker, Postgres, Redis and any S3‑compatible storage, and the desktop client runs on Electron [1]
• The project is fully open‑source on GitHub and invites community feedback on features and improvements [1]

Local‑first design eliminates vendor lock‑in

Colanode’s core design keeps data on the user’s machine until it is synchronized with a self‑hosted server. Each piece of content—messages, files, folders, channels, or database records—is represented as a “node” with its own attributes and permissions. The desktop client writes directly to a local SQLite store, while a synchronization engine built on top of SQLite, Postgres and the Yjs conflict‑resolution library propagates changes to other collaborators. This approach provides offline support and prepares the platform for future integration with locally‑run large language models, enhancing both privacy and performance [1].

Self‑hosting options and extensibility

The server component can be run in any environment that supports Docker, PostgreSQL, Redis, and an S3‑compatible object store. Because the entire stack is open‑source, organizations can deploy Colanode behind their own firewalls and retain complete ownership of conversation and note data. The codebase uses only open‑source dependencies, avoiding any vendor‑specific cloud services. Hakan notes that early feedback highlighted a strong demand for full control over sensitive data, which drove the decision to open‑source the project under Apache 2.0 [1]. Community contributions are welcomed, and a short demo video is available to illustrate the user experience [1].

Why it matters

Colanode addresses a common pain point for teams that rely on both instant messaging and collaborative documentation. By unifying these functions in a self‑hosted, privacy‑focused package, it offers an alternative to proprietary SaaS solutions that often require data to be stored in third‑party clouds. The local‑first architecture also positions the project to incorporate on‑device AI tools without compromising user data. As more organizations seek open‑source, self‑hosted collaboration platforms, Colanode’s blend of chat, note‑taking, and extensible sync mechanisms could influence future development of privacy‑centric productivity software.