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	45,716	25,402
Forks	13,680	9,889
Open Issues	3,800	2,016
Last Commit	Jun 26, 2026	Jun 25, 2026
First Released	May 19, 2015	Sep 25, 2015
Categories	Team Chat & Messaging Tools	Team Chat & Messaging Tools
Tags	#chat #collaboration	#chat #messaging #collaboration

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