head to head · open source
ComfyUI vs FLUJO
ComfyUI has 144,907 GitHub stars, 17,244 forks, 4,894 open issues and last shipped yesterday. FLUJO has 673 stars, 93 forks, 26 open issues and last shipped yesterday. ComfyUI leads on adoption by 21,432% (144,907 vs 673 stars). ComfyUI is written in Python under GPL-3.0; FLUJO is written in TypeScript under MIT. ComfyUI has attracted 12% as many forks as stars, FLUJO 14%. ComfyUI 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
| ComfyUI | FLUJO | |
|---|---|---|
| GitHub stars | ★ 145K | ★ 673 |
| License | GPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 17K | ⑂ 93 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 145K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick FLUJO if
- You want the FLUJO feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and FLUJO fits your workflow better
About ComfyUI
ComfyUI The most powerful and modular AI engine for content creation. [![Website][website shield]][website url] [![Dynamic JSON Badge][discord shield]][discord url] [![Twitter][twitter shield]][twitter url] [![Matrix][matrix shield]][matrix url] [![][github release shield]][github release link] [![][github release date shield]][github release link] [![][github downloads shield]][github downloads link] [![][github downloads latest shield]][github downloads link] [matrix shield]: [matrix url]: [website shield]: [website url]: [discord shield]: [discord url]: [twitter shield]: [twitter url]: [github release…
read the full ComfyUI overview →
About FLUJO
FLUJO Build private AI agents visually. Run them your way. Connect your AIs and apps, build an agent, then talk to it, automate it, or call it from other software. FLUJO is open source and local first. Start with the guided setup, build agents as simple step by step recipes or expert visual flows, inspect every run, and expose the same agents through OpenAI compatible and MCP endpoints — while your keys and data stay under your control. Simple + visual builders · MCP native · Multi model · Built in debugger · Automation Visit flujo.com.co → · Watch the 2:28 product film → · Install FLUJO ↓ · Explore features ↓ ·…
read the full FLUJO overview →
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Frequently asked questions
Is ComfyUI or FLUJO more popular?
ComfyUI has 144,907 GitHub stars and FLUJO has 673. ComfyUI has the larger community by that measure.
Are ComfyUI and FLUJO free?
Both are open source. ComfyUI is licensed under GPL-3.0 and FLUJO under MIT. Neither carries a licence fee.
What is the difference between ComfyUI and FLUJO?
ComfyUI is written in Python and FLUJO 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, ComfyUI or FLUJO?
Choose ComfyUI if you want the larger community (144,907 stars) or its GPL-3.0 licence terms. Choose FLUJO if its feature set, stack or MIT licence fits better. Both are self-hostable.