head to head · open source
Buzz vs FluidFramework
Buzz has 33,508 GitHub stars, 4,389 forks, 3,556 open issues and last shipped yesterday. FluidFramework has 4,946 stars, 586 forks, 207 open issues and last shipped yesterday. Buzz leads on adoption by 577% (33,508 vs 4,946 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%. Buzz 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 | ★ 34K | ★ 4.9K |
| License | Apache-2.0 | MIT |
| Written in | Rust | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 4.4K | ⑂ 586 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Buzz if
- You weight community size — 34K 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 is a self hostable workspace platform where humans and AI agents collaborate in shared rooms, using a single Nostr based event log as the underlying data model. It unifies team chat, project management, and agent automation into one coherent interface, replacing fragmented tools with a unified protocol for events like messages, code patches, CI results, workflow steps, and approvals. Built in Rust and licensed under Apache 2.0, it runs as a single relay deployment per community or as a multi tenant hosted service sharing infrastructure while preserving strict community boundaries.
About FluidFramework
FluidFramework is an MIT licensed TypeScript library from Microsoft for building distributed, real time collaborative web applications in JavaScript or TypeScript, aimed at developers who need shared, synchronized state across many clients without assembling that synchronization layer themselves.
read the full FluidFramework overview →
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Frequently asked questions
Is Buzz or FluidFramework more popular?
Buzz has 33,508 GitHub stars and FluidFramework has 4,946. 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 (33,508 stars) or its Apache-2.0 licence terms. Choose FluidFramework if its feature set, stack or MIT licence fits better. Both are self-hostable.