Rocket.Chat vs Zulip

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

Rocket.Chat

MIT

The communications platform that puts data protection first.

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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

	Rocket.Chat	Zulip
License	MIT	Apache-2.0
Self-hostable	Yes	Yes
GitHub Stars	46,217	25,999
Forks	13,954	10,356
Open Issues	4,197	2,044
Last Commit	Oct 6, 2026	Oct 6, 2026
First Released	May 19, 2015	Sep 25, 2015
Categories	Team Chat & Messaging Tools	Team Chat & Messaging Tools
Tags	#chat #collaboration	#chat #messaging #collaboration

GitHub stars over time

Rocket.Chat46,217

Zulip

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