Run ComfyUI workflows for free with Gradio on Hugging Face Spaces

Index:

• Intro
  • Prerequisites
• Exporting your ComfyUI workflow to run on pure Python
• Create a Gradio app for your ComfyUI app
• Prepare it to run on Hugging Face Spaces
• Exporting to Spaces and running on ZeroGPU
• Conclusion

Intro

In this tutorial I will present a step-by-step guide on how to convert a complex ComfyUI workflow to a simple Gradio application, and how to deploy this application on Hugging Face Spaces ZeroGPU serverless structure, which allows for it to be deployed and run for free in a serverless manner. In this tutorial, we are going to work with Nathan Shipley's Flux[dev] Redux + Flux[dev] Depth ComfyUI workflow, but you can follow the tutorial with any workflow that you would like.

The tl;dr summary of what we will cover in this tutorial is:

1. Export your ComfyUI workflow using ComfyUI-to-Python-Extension;
2. Create a Gradio app for the exported Python;
3. Deploy it on Hugging Face Spaces with ZeroGPU;
4. Soon: this entire process will be automated;

Prerequisites

• Knowing how to run ComfyUI: this tutorial requires you to be able to grab a ComfyUI workflow and run it on your machine, installing missing nodes and finding the missing models (we do plan to automate this step soon though);
• Getting the workflow you would like to export up and running (if you want to learn without a workflow in mind, feel free to get Nathan Shipley's Flux[dev] Redux + Flux[dev] Depth ComfyUI workflow up and running);
• A little bit of coding knowledge: but I would encourage beginners to attempt to follow it, as it can be a really nice introduction to Python, Gradio and Spaces without too much prior programming knowledge needed.

(If you are looking for an end-to-end "workflow-to-app" structure, without needing to setup and run Comfy or knowing coding, stay tuned on my profile on Hugging Face or Twitter/X as we plan to do this in early 2025!).

1. Exporting your ComfyUI workflow to run on pure Python

2. Create a Gradio app for the exported Python

For that, a minimal Gradio app would be:

script: