I run ComfyUI on Colab as Google has way faster GPUs than I could ever have myself. But I’ve often wanted to inspect or edit a workflow or look at the metadata in a .png file without running a Colab session which takes 5 or so minutes to start up. The only offline tools I can find just produce verbose output of the json code or exif metadata that are very hard to read/interpret.
However, I’ve discovered that there is a small, stand-alone local installation of ComfyUI that runs on the CPU which can be used to do this, though not image generation, of course. It loads in less than a minute and has all the functionality I need. If there’s interest, I can explain how to install/use it.
Related to this, there’s a sidebar node called ComfyUI-PNGinfo-sidebar which does what is says and is pretty useful