ComfyUI
Create AI images and videos with visual connected blocks.
Free alternative to Midjourney · Adobe Firefly
Screenshot from the project’s own README · tap to enlarge
ComfyUI is a local tool that lets you generate AI images, videos, and audio by connecting visual nodes like building blocks. It gives you precise control over every step of the generation process and can run entirely offline on your computer.
✓ Good for
Visual creators wanting total control over local AI generation workflows.✕ Skip it if
Anyone looking for a simple one-click prompt-to-image generator.How to start
- Download the desktop app for Windows or Mac.
- Place your AI model files in the models folder.
- Open the app and run or customize a workflow.
Requires dedicated GPU hardware and manual downloading of large AI model files.
Not sure how to install, or if it’s safe? Read the beginner guide
FAQ
Is ComfyUI free?
Yes, ComfyUI is completely free and open-source under the GPL-3.0 license. It runs locally on your hardware without requiring paid subscriptions or API keys.
Is ComfyUI safe to download?
It is open source (GPL-3.0 license) with 146,696 GitHub stars, last updated 2026-11-14. Download only from the official link on this page, and scan the file before installing: see the safety checklist in our beginner guide.
Does ComfyUI work offline?
Yes, ComfyUI runs entirely on your local machine and works completely offline once you have installed the software and downloaded your AI model files.
Compiled from the project README. 146,696 GitHub stars (2026-11-13) · License GPL-3.0 · Last update 2026-11-14