Chatto vs Colanode
Comparing two open source alternatives to Slack. Use the comparison below to decide which one fits your needs.
Chatto
AGPL-3.0A self-hosted chat application for teams and communities with video calls, voice calls, and screen sharing.
Colanode
Apache-2.0Open source, local-first Slack and Notion alternative that puts you in control of your data with offline support and end-to-end encryption.
Side-by-side comparison
| Chatto | Colanode | |
|---|---|---|
| License | AGPL-3.0 | Apache-2.0 |
| Self-hostable | Yes | Yes |
| GitHub Stars | 2,827 | 5,158 |
| Forks | 135 | 324 |
| Open Issues | 223 | 47 |
| Last Commit | Oct 8, 2026 | Apr 3, 2026 |
| First Released | Apr 8, 2026 | Jul 29, 2024 |
| Categories | ||
| Tags | — |
GitHub stars over time
GitHub stars over time
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
Mumble
Low-latency, open-source voice chat built for gaming — self-host your own server with no subscription required.
Discord
Outline
The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.
Notion
memos
Privacy-first, self-hosted note-taking platform with markdown support, tagging, and built-in AI — a lightweight alternative to Notion and Obsidian.
Obsidian