Raven vs Zulip

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

Raven

AGPL-3.0

Simple, open source team messaging platform

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Zulip

Apache-2.0

Open-source team chat with a unique topic-based threading model that makes it easy to follow multiple conversations.

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Side-by-side comparison

	Raven	Zulip
License	AGPL-3.0	Apache-2.0
Self-hostable	No	Yes
GitHub Stars	794	25,944
Forks	372	10,285
Open Issues	120	2,027
Last Commit	Sep 24, 2026	Sep 23, 2026
First Released	Feb 10, 2023	Sep 25, 2015
Categories	Team Chat & Messaging Tools	Team Chat & Messaging Tools
Tags	#chat #messaging	#chat #messaging #collaboration

GitHub stars over time

Raven794

Zulip

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