ComfyUI Resource Extractor
Upload a ComfyUI PNG image or a JSON workflow to instantly extract all URLs and model files (safetensors, ckpt, etc.) referenced inside.
External Links (URLs)
Model & Resource Files
ComfyUI Workflow Extractor | Extract ComfyUI Workflow from Image Free
ComfyUI Resource Extractor: Find Models & Links in Your Workflows
Have you ever downloaded a cool ComfyUI image and wanted to know exactly which models were used to make it? Or do you have an old workflow JSON file and need to find the link for a custom node?
Our free ComfyUI Resource & Link Extractor is the easiest way to analyze your ComfyUI files instantly. You don’t need to install anything, it works right in your web browser.

Table of Contents
How to Use the ComfyUI Resource Extractor
Using this tool is very simple. No technical skills are needed!
- Click or Drop: Click on the dotted upload box above, or drag and drop your file into it.
- Select Your File: You can upload two types of files:
- PNG Images: Upload an original image generated by ComfyUI. The tool reads hidden metadata saved inside the picture.
- JSON Files: Upload a ComfyUI workflow file (
.json).
- Get Results: The tool will instantly show two lists:
- External Links (URLs): Links to websites (like GitHub) found inside the workflow.
- Model & Resource Files: Names of models, LoRAs, and VAEs used.
Why Use This Workflow Analyzer?
ComfyUI workflows can be complex. When you share an image or a JSON file, other users might not know what models they need to make it work.
This tool helps you:
- Identify Missing Models: If you are trying to run someone else’s workflow, this tool tells you exactly which
.safetensorsor.ckptfiles you need to download. - Find Custom Node Links: Quickly find GitHub links for custom nodes referenced in the workflow.
- Share Better: Before sharing your workflow, run it through this tool to create a handy list of resources for your viewings.

Features
Instant, Browser-Based Processing
Your files are never uploaded to a server. All the analysis happens right on your computer inside your web browser. It is fast, secure, and private.
Supports PNG and JSON
Whether you have the final image or just the workflow data, this tool can read both. Please note: Images must be original generations from ComfyUI. Social media sites like Discord often strip out the hidden workflow data.
One-Click Copy
Found the model name or link you need? Click the handy copy icon next to any item to save it to your clipboard instantly.
Deep Scanning
The tool scans through every node in your workflow to find resources, including:
.safetensors.ckpt(checkpoints).pt&.pth(PyTorch models).gguf- …and many more model formats!
Frequently Asked Questions (FAQ)
Is this tool free?
Yes, this ComfyUI tool is 100% free to use with no hidden costs or limits.
Is my data safe?
Yes. The tool runs locally using JavaScript. We do not copy, collect, or store your files or data.
Why does it say “No ComfyUI metadata found”?
If you uploaded a PNG and see this error, the image might not have been generated by ComfyUI, or it might have been compressed by a website, which deleted the hidden workflow information.