Learn how Buzz and Zulip differ in their key features, development activity, technology stack and community adoption, so you can decide which of these team chat & messaging tools is best for you.
Last 30 days
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Last 30 days
Last commit
Repository age
Version
License
Self-hosted
Repository

Both Buzz and Zulip have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
Both tools have similar popularity levels, with Buzz having 31,966 stars and Zulip having 25,812 stars on GitHub. In terms of developer contributions, Zulip has 10,181 forks, indicating strong developer engagement.
Buzz is growing faster, adding 10,285 stars in the last 30 days (+47%) against adding 214 stars for Zulip (+0.8%). Buzz is both larger and pulling further ahead.
Both projects show recent activity, with Buzz last updated 8 hours ago and Zulip 18 hours ago.
Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript, Python. However, they differ in their additional technology choices: Buzz uses JSX, Rust, C, Objective-C, Swift, Kotlin, Tauri, Dart while Zulip leverages Ruby.
Zulip has been in development longer, starting 11 years ago, compared to Buzz which began 6 months ago. This 10.6-year head start suggests Zulip may have more mature features and established processes.
Both projects use the Apache-2.0 license, providing identical terms for usage and distribution.
Both tools serve similar use cases in Team Chat & Messaging.
Both Buzz and Zulip offer self-hosting capabilities, giving you full control over your data and infrastructure.
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