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	2,638	47,703
Forks	117	9,001
Open Issues	208	256
Last Commit	Aug 22, 2026	Aug 22, 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

GitHub stars over time

Chatto

Discourse47,703

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