Chatto vs Zulip
A side-by-side comparison of two open-source tools to help you choose the right one.
| Feature | CH | |
|---|---|---|
| Summary | Self-hostable team & community chat. | Threaded team chat that scales with focus. |
| GitHub stars | 896 | 22K |
| License | AGPL 3.0 | Apache 2.0 |
| Language | Go | Python |
| Pricing | Free & Open Source | Free & Open Source |
| Self-hostable | ||
| Replaces | Slack, Microsoft Teams, Discord | Slack, Discord |
| Rating | 4.6 / 5 | 4.5 / 5 |
Chatto features
- Real-time messaging with channels for teams and communities
- Built-in voice and video calls (powered by LiveKit)
- Screen sharing during calls
- Privacy-first and GDPR-compliant — data stays on your own servers
- Self-host via standalone binary, Docker Compose, or Kubernetes
Zulip features
- Topic-based threading within channels
- Powerful search and keyboard navigation
- Markdown, code blocks, and LaTeX
- Integrations and incoming webhooks
- Self-hosted or cloud