head to head · open source
Buzz vs FluidFramework
Buzz has 36,686 GitHub stars, 4,869 forks, 3,556 open issues and last shipped yesterday. FluidFramework has 4,951 stars, 589 forks, 207 open issues and last shipped yesterday. Buzz leads on adoption by 641% (36,686 vs 4,951 stars). Buzz is written in Rust under Apache-2.0; FluidFramework is written in TypeScript under MIT. Buzz has attracted 13% as many forks as stars, FluidFramework 12%. FluidFramework was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Buzz | FluidFramework | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 5.0K |
| License | Apache-2.0 | MIT |
| Written in | Rust | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.9K | ⑂ 589 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Buzz if
- You weight community size — 37K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick FluidFramework if
- You want the FluidFramework feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and FluidFramework fits your workflow better
About Buzz
Buzz 🐝 A workspace where humans and agents build together, on a relay you own. Vision · Sovereign · Forge · Agents · Architecture · Releasing · Apache 2.0 People and agents building together in the same room. What is this, really? Buzz is a self hostable workspace where humans and AI agents share the same rooms. A Buzz community is the workspace a user reaches by URL. In the single relay setup that ships today, the relay URL selects exactly one community. A hosted operator can serve many communities behind many domains or subdomains, but the client facing rule stays the same: the URL is authoritative for the…
About FluidFramework
Fluid The Fluid Framework is a library for building distributed, real time collaborative web applications using JavaScript or TypeScript. Getting started using the Fluid Framework You may be here because you want to... Learn more about the Fluid Framework Build a Fluid object Documentation and guides can be found at . Hello World repo can be found at . Core Examples repo can be found at . Have questions? Engage with other Fluid Framework users and developers in the Discussions section of our GitHub repo. Using Fluid Framework libraries For a dependency on a Fluid Framework library's public APIs, we recommend a ^…
read the full FluidFramework overview →
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Frequently asked questions
Is Buzz or FluidFramework more popular?
Buzz has 36,686 GitHub stars and FluidFramework has 4,951. Buzz has the larger community by that measure.
Are Buzz and FluidFramework free?
Both are open source. Buzz is licensed under Apache-2.0 and FluidFramework under MIT. Neither carries a licence fee.
What is the difference between Buzz and FluidFramework?
Buzz is written in Rust and FluidFramework in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Buzz or FluidFramework?
Choose Buzz if you want the larger community (36,686 stars) or its Apache-2.0 licence terms. Choose FluidFramework if its feature set, stack or MIT licence fits better. Both are self-hostable.