SaveImageSimple

SaveImageSimple is this pack's answer to the stock SaveImage node: take an IMAGE, write it to a PNG, done. Inputs are images and an optional filename_prefix; it's an output node, so it produces nothing downstream - it's the end of the line. The output folder is ComfyUI/output, same as the stock node.

The "simple" part is mostly about filenames. The stock node's filename_prefix has its own counter logic; this one just takes your prefix, strips any * characters (a nod to the pack's wildcard themes), and appends a timestamp plus a five-digit index: mybatch_20260815_101530_00001_.png. Timestamped names are actually a nice property for batch farming - files never collide, and you can sort by time instead of remembering a counter. Metadata is embedded as PNG text (prompt and any extra workflow info), so ComfyUI's drag-in-to-rebuild trick still works.

The inputs

• images (IMAGE) - wire anything that outputs an image: a sampler, a VAE decode, an upscaler.
• filename_prefix (STRING, default empty) - becomes the start of every filename. Leave it empty and you get timestamped files with a bare index.

That's it. No compression setting, no format choice, no subfolder option. It always writes PNG with optimize=True.

Install and when you'd bother

Clone and restart; ComfyUI Manager finds it by searching "Lilly":

cd ComfyUI/custom_nodes
git clone https://github.com/lilly1987/ComfyUI_node_Lilly

Restart after cloning. No models to download; rich/chardet auto-install on first load.

Be honest about when this is worth it: it's a marginal convenience over the stock node, and the pack is unmaintained - the author's README points to Impact Pack for new work. If you already have this pack installed for its wildcard nodes, sure, it's a fine save node and the timestamped names genuinely help batch workflows. If you're cloning the pack just for this, you're adding a legacy dependency to save one double-click. There are maintained save nodes with subfolders and format options that do more.