ComfyUI Metadata Viewer
ComfyUI saves the entire node graph used to generate an image into the PNG under a "workflow" key, plus the API prompt under "prompt". This viewer reads those chunks in your browser and shows what the image reveals about how it was made. Analyzed locally in your browser - nothing is uploaded.
What ComfyUI metadata reveals
The embedded workflow is powerful for sharing setups, but it is also a full disclosure: anyone can load your PNG back into ComfyUI and see your models, custom nodes, prompts and sampler settings. Before you post a generation publicly, check what the workflow chunk contains.
- The full ComfyUI node graph ("workflow")
- The API prompt ("prompt")
- Models, LoRAs and custom nodes referenced
- Sampler, steps, seed and CFG settings
- Whether a workflow is present at all
Frequently Asked Questions
About reading EXIF, GPS, AI traces and other embedded metadata.
Drop the PNG here. If it contains a ComfyUI workflow, the tool flags it and shows the embedded node-graph data under the raw PNG chunks, so you can read exactly what was saved.
No. The workflow is metadata, not pixels. You can strip it with the Metadata Remover and the image looks identical - it just no longer carries the recipe.