head to head · open source
ComfyUI vs builderbot
ComfyUI has 133,963 GitHub stars, 15,874 forks, 4,894 open issues and last shipped today. builderbot has 2,969 stars, 951 forks, 19 open issues and last shipped 16 days ago. ComfyUI leads on adoption by 4,412% (133,963 vs 2,969 stars). ComfyUI is written in Python under GPL-3.0; builderbot is written in TypeScript under MIT. ComfyUI has attracted 12% as many forks as stars, builderbot 32%. 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 | builderbot | |
|---|---|---|
| GitHub stars | ★ 134K | ★ 3.0K |
| License | GPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-20 | 2026-09-04 |
| Forks | ⑂ 16K | ⑂ 951 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 134K 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 builderbot if
- You want the builderbot feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and builderbot fits your workflow better
About ComfyUI
ComfyUI is a GPL 3.0 licensed Python and PyTorch node graph application, local API, and backend for running diffusion models across image, video, audio, 3D, and text workflows, built for visual professionals who want control over every model, parameter, and output, and for developers who embed those workflows into production pipelines.
read the full ComfyUI overview →
About builderbot
BuilderBot is an MIT licensed TypeScript library for building automated WhatsApp conversation flows that stay agnostic to the underlying WhatsApp provider, aimed at developers and teams that want to script their own chatbot logic instead of renting a hosted conversational platform.
read the full builderbot overview →
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Frequently asked questions
Is ComfyUI or builderbot more popular?
ComfyUI has 133,963 GitHub stars and builderbot has 2,969. ComfyUI has the larger community by that measure.
Are ComfyUI and builderbot free?
Both are open source. ComfyUI is licensed under GPL-3.0 and builderbot under MIT. Neither carries a licence fee.
What is the difference between ComfyUI and builderbot?
ComfyUI is written in Python and builderbot 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 builderbot?
Choose ComfyUI if you want the larger community (133,963 stars) or its GPL-3.0 licence terms. Choose builderbot if its feature set, stack or MIT licence fits better. Both are self-hostable.