head to head · open source
vibe-kanban vs Fizzy
vibe-kanban has 28,569 GitHub stars, 3,050 forks, 540 open issues and last shipped 5 days ago. Fizzy has 8,280 stars, 1,211 forks, 67 open issues and last shipped yesterday. vibe-kanban leads on adoption by 245% (28,569 vs 8,280 stars). vibe-kanban is written in Rust under Apache-2.0; Fizzy is written in Ruby under a custom or non-standard licence. vibe-kanban has attracted 11% as many forks as stars, Fizzy 15%. Fizzy was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (kanban), so they are genuine substitutes rather than adjacent tools.
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
| vibe-kanban | Fizzy | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 8.3K |
| License | Apache-2.0 | Custom / other |
| Written in | Rust | Ruby |
| Last push | 2026-10-29 | 2026-11-02 |
| Forks | ⑂ 3.0K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick vibe-kanban if
- You weight community size — 29K 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 Fizzy if
- You want the Fizzy feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Ruby
- You evaluated both and Fizzy fits your workflow better
About vibe-kanban
Get 10X more out of Claude Code, Gemini CLI, Codex, Amp and other coding agents... Vibe Kanban is sunsetting. Read the announcement. Overview In a world where software engineers spend most of their time planning and reviewing coding agents, the most impactful way to ship more is to get faster at planning and review. Vibe Kanban is built for this. Use kanban issues to plan work, either privately or with your team. When you're ready to begin, create workspaces where coding agents can execute. Plan with kanban issues — create, prioritise, and assign issues on a kanban board Run coding agents in workspaces — each…
read the full vibe-kanban overview →
About Fizzy
Fizzy This is the source code of Fizzy, the Kanban tracking tool for issues and ideas by 37signals. Running your own Fizzy instance If you want to run your own Fizzy instance, but don't need to change its code, you can use our pre built Docker image. You'll need access to a server on which you can run Docker, and you'll need to configure some options to customize your installation. You can find the details of how to do a Docker based deployment in our Docker deployment guide. If you want more flexibility to customize your Fizzy installation by changing its code, and deploy those changes to your server, then we…
read the full Fizzy overview →
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Frequently asked questions
Is vibe-kanban or Fizzy more popular?
vibe-kanban has 28,569 GitHub stars and Fizzy has 8,280. vibe-kanban has the larger community by that measure.
Are vibe-kanban and Fizzy free?
Both are open source. vibe-kanban is licensed under Apache-2.0, and Fizzy has no licence declared in this registry. Both are free to self-host.
What is the difference between vibe-kanban and Fizzy?
vibe-kanban is written in Rust and Fizzy in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, vibe-kanban or Fizzy?
Choose vibe-kanban if you want the larger community (28,569 stars) or its Apache-2.0 licence terms. Choose Fizzy if its feature set, stack or Custom / other licence fits better. Both are self-hostable.