Standalone tool to extract generation info from PNG, JPEG, WebP images, works for A1111/Forge, NovelAI, InvokeAI, Midjourney and (most) ComfyUI types of metadata.
https://github.com/otacoo/comfyui_metadata_extract
git clone https://github.com/otacoo/comfyui_metadata_extract
comfy node install comfyui_metadata_extract