Colanode
Open source, local-first Slack and Notion alternative that puts you in control of your data with offline support and end-to-end encryption.
Colanode is an open source, local-first collaboration suite that combines a Notion-style knowledge base with a Slack-style team chat in a single desktop application. It is built on CRDTs (Yjs) and SQLite, so every change is replicated locally first and then synced peer-to-peer or through a self-hosted server.
Pages, databases, channels, and threads are all stored in a local SQLite database on each user’s machine, meaning you can keep working fully offline. The desktop client is built with Electron, while the server component is small and can be self-hosted on a Raspberry Pi or a small VPS.
Colanode is released under Apache-2.0 and is well suited to small teams and communities that want the productivity of Notion and Slack while keeping conversations, documents, and data on hardware they control.
Categories:
Looking for contributors
This project is actively seeking help, join the community!
Repository details
Updated 6/23/2026, 8:00:46 AM
View RepositoryCompare Colanode with
Similar open source alternatives
AppFlowy
Open source Notion alternative that brings projects, wikis, and teams together with AI while keeping you in control of your data.
Notion
HelixNotes
A fast, privacy-first local markdown note-taking app built with Tauri and SvelteKit. Your notes stay as plain .md files on your device.
Obsidian
Jotty
Lightweight self-hosted app for managing personal file-based notes and checklists.
Notion
Outline
The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.
Notion
memos
A modern, open-source, self-hosted knowledge management and note-taking platform designed for privacy-conscious users and organizations.
Obsidian
AFFiNE
Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.
Notion