Back to all tools
ComfyUI
Node-based, open-source interface for Stable Diffusion and other image models.
4.6 (2,600 reviews)
About ComfyUI
ComfyUI is an open-source, node-based interface for running Stable Diffusion and other open image and video generation models. Instead of a single prompt box, you build a visual graph of the exact steps you want — sampling, upscaling, inpainting, ControlNet conditioning, and more — giving far more control and repeatability than prompt-only tools. Workflows can be saved and shared as files, and a large community maintains custom nodes that extend it well beyond the base functionality. It runs entirely on your own hardware.
Key Features
- Visual, node-based workflow editor
- Fine-grained control over every generation step
- Supports Stable Diffusion, Flux, and other open models
- Shareable, reusable workflow files
- Large library of community-built custom nodes
Best For
- Fine-grained, repeatable control over image generation pipelines
- Building complex multi-step workflows (upscaling, inpainting, ControlNet)
- Running open image models entirely on your own hardware
Pros
- Free and open-source
- Far more control than prompt-only interfaces
- Runs entirely on your own hardware
- Active community constantly adding new nodes and workflows
Cons
- Steep learning curve, especially for non-technical users
- Requires a capable GPU for reasonable speed
- Complex workflows can be hard to read at a glance
