Chatto vs Element
Comparing two open source alternatives to Slack and Discord. 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.

Element
AGPL-3.0Open-source Matrix client for secure, decentralized messaging, voice, and video — runs on your own server.
Side-by-side comparison
Element | ||
|---|---|---|
| License | AGPL-3.0 | AGPL-3.0 |
| Self-hostable | Yes | Yes |
| GitHub Stars | 2,827 | 13,544 |
| Forks | 135 | 2,787 |
| Open Issues | 223 | 3,729 |
| Last Commit | Oct 8, 2026 | Oct 6, 2026 |
| First Released | Apr 8, 2026 | Jul 22, 2015 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
Similar open source alternatives

Mumble
Low-latency, open-source voice chat built for gaming — self-host your own server with no subscription required.
Discord
Huly
All-in-one open source platform that combines project management, CRM, chat, HR, and wiki as an alternative to Linear, Jira, Slack, and Notion.

Bytedesk
Open source AI-powered omnichannel customer service platform that combines live chat, ticketing, and team collaboration as an alternative to Slack, Zendesk, Intercom, and HubSpot.

Tinode
Instant messaging platform with self-hosted backend in Go and clients for iOS, Android, web, and command line.

Sharkord
Self-hosted chat server with voice, video, text, and screen sharing — Discord-like features on your own infrastructure.
Discord
Zulip
Open-source team chat with a unique topic-based threading model that makes it easy to follow multiple conversations.