Chatto vs Discourse

Comparing two open source alternatives to Slack and Discord . Use the comparison below to decide which one fits your needs.

Chatto

AGPL-3.0

A self-hosted chat application for teams and communities with video calls, voice calls, and screen sharing.

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Discourse

GPL-2.0

A platform for community discussion. Free, open, simple.

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Side-by-side comparison

	Chatto	Discourse
License	AGPL-3.0	GPL-2.0
Self-hostable	Yes	Yes
GitHub Stars	1,264	47,427
Forks	46	8,950
Open Issues	158	196
Last Commit	Jul 9, 2026	Jul 8, 2026
First Released	Apr 8, 2026	Jan 12, 2013
Categories	Team Chat & Messaging Tools	Team Chat & Messaging Tools
Tags	#chat #collaboration #self hosted #privacy	#forum #chat

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