Save Image (Simple)

ComfyUI's stock Save Image node does the job, but it's also the node most pack authors end up replacing with their own take. easy imageSave - labeled Save Image (Simple) on the canvas - is Easy-Use's version: a save node with a preview toggle baked in, so you can flip between "actually write this to disk" and "just show me what it looks like" without swapping nodes, plus filename tokens for things like the current date.

Why you'd reach for it

Mostly because it's already sitting in your graph. If you built your workflow around Easy-Use's loaders and samplers, this save node fits the same family and needs no extra install. The one feature worth knowing about is only_preview: leave it off and every run writes a file; flip it on and the node behaves like a Preview Image instead - same node, same wiring, no output file. That's handy while you're iterating on a workflow and don't want to fill your output folder with test runs, then flipping it back off once you're happy and ready to actually save.

How it works

It takes your image (or batch), writes it using the requested filename prefix, and - unless only_preview is on - saves to ComfyUI's output directory the same way the stock node does. It's an output node, so it also renders a preview in the UI regardless of the save setting.

The inputs that matter

• images - the image or batch to save. The only required connection.
• filename_prefix (default ComfyUI) - the prefix for the saved filename. Change this per-workflow so your output folder doesn't turn into an undifferentiated pile of ComfyUI_00001.png, ComfyUI_00002.png, and so on. The pack's own changelog describes this node as supporting "date conversion and aspect and height formatting," so it's worth trying ComfyUI's usual %date:yyyy-MM-dd%-style tokens in the prefix if you want the folder to organize itself by date or dimensions instead of hand-editing the prefix every session.
• only_preview (default false) - the toggle described above. true = show it, don't write it.

There's no output slot - this is a terminal node, the end of the line for whatever image reaches it.

Installing it

You get this with the base pack, no separate step. ComfyUI Manager: search ComfyUI Easy Use, install, restart. Or:

cd ComfyUI/custom_nodes
git clone https://github.com/yolain/ComfyUI-Easy-Use

then run install.bat on Windows or pip install -r requirements.txt, and restart. No models, no extra dependencies.

Common issues & troubleshooting

Nothing shows up in your output folder. First check only_preview - it's an easy setting to leave flipped on from a test session and forget about. If it's off and you still don't see a file, check that the run actually reached this node; an error upstream means the save never fires.

Filenames collide or overwrite. They shouldn't in the normal case - ComfyUI's save path auto-increments a numeric suffix per prefix, same convention as the stock Save Image node. If you're seeing collisions, you're most likely running multiple workflows with the same filename_prefix writing to the same output folder in parallel; give each workflow its own prefix (or a subfolder path baked into the prefix, e.g. myproject/run) to keep them apart.

The prefix tokens don't do what you expect. If you're trying date or size tokens in filename_prefix and the result looks wrong, double-check the exact token syntax against what your ComfyUI version supports - token formats have changed across ComfyUI releases, and a typo just gets written literally into the filename instead of erroring, which makes the mistake easy to miss until you're staring at a folder full of %date:yyyy-MM-dd%_00001.png.