Simple Image Saver

ComfyUI's built-in saver is fine until you want a specific filename in a specific folder with metadata intact - then it's a fight. SimpleImageSaver is the pack's no-drama file writer: take images, give it a path and a name, and it writes PNG or JPG with the workflow metadata embedded, an optional suffix on the filename, and a counter so it never silently clobbers an existing file.

The inputs are self-explanatory in a good way - most have tooltips from the author:

• output_path - "Directory path (absolute or relative to ComfyUI/output)." Relative paths land in your output folder, so you can keep everything tidy.
• filename - base name without extension (default ComfyUI).
• suffix - "Optional suffix appended with a dash when provided." So filename: photo, suffix: restored → photo-restored.png. Feed it from FilenameAppendSuffix or LoadImageCombined and your batch files get consistent, meaningful names.
• file_format - PNG or JPG. jpeg_quality (default 95, "JPEG quality (0-100)") for the JPG side.
• include_metadata - "Include workflow metadata (prompt + extras)" - on by default, so your saved PNG carries the prompt and graph info, which is the difference between a file you can reverse-engineer and a dead end.
• unique_filenames - "Append a counter to avoid overwriting existing files" - on by default. This is the anti-footgun: rerun the graph, get photo-restored-1.png, not a silently destroyed previous run.

It's an output node (is_output_node true), so it has no outputs and sits at the end of the graph - the standard terminal-node shape. Under the hood it writes real PNG metadata via PIL's PngInfo and, for JPEG, embeds a comment. The honest caveat: JPEG comments have a size cap, so if your metadata payload is huge it gets skipped with a warning in the log rather than silently truncated. If metadata fidelity matters, PNG is the format.

Install

Manager → search "PortraitUtils", or:

cd ComfyUI/custom_nodes
git clone https://github.com/heyburns/PortraitUtils

Restart. PIL only, which the pack already requires.

Common issues

• "File already exists" behavior surprises you - unique_filenames defaults on; turn it off if you genuinely want to overwrite each run.
• JPEG has no metadata - comments cap out. If the workflow prompt is huge, it's dropped with a warning. Use PNG for archival, JPG for quick exports.
• Files landing somewhere unexpected - relative output_path resolves against ComfyUI/output. Use an absolute path if you want them elsewhere.
• The (1) counters feel messy - that's unique_filenames doing its job. It's the "never lose a render" tradeoff, and it's usually worth it.

It's the least glamorous node in the pack and possibly the most used. Every pipeline ends somewhere, and ending at a well-named, metadata-carrying file is a quality-of-life upgrade you feel on the first batch.