ComfyUI Extension: Save Image (XMP)
Run ComfyUI workflows without the setup
No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.
Save layered TIFFs and flat images from ComfyUI with XMP metadata burned into the file — workflow graph, prompt, model SHA256 hashes, and arbitrary JSON embedded per-file.
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Custom Nodes (3)
README
ComfyUI Save Layered Image with Metadata!
Format spec: this node is a reference implementation of the Layered TIFF + XMP specification.
Stop keeping track of so many files.
Save layered TIFFs and flat images (Webp, PNG, JPEG) from ComfyUI with XMP metadata burned into the file — the workflow graph, prompts, model SHA256 hashes, and any arbitrary JSON embedded per-file.
Save Layered TIFF (XMP)
Saves a multi-page TIFF where each page is a named layer. XMP metadata is embedded on page 0. Previews all layers in the node UI.
| Input | Type | Description |
|---|---|---|
| preview_image | IMAGE | Page 0 / thumbnail layer |
| layers | IMAGE | Additional layers (list) |
| layer_names | STRING | Names aligned to layers (list) |
| json_metadata | STRING | Optional JSON to embed in cfl:extra |
| preview_name | STRING | Name for the preview layer |
| filename_prefix | STRING | Output filename prefix |
| author | STRING | Author name embedded in XMP |
Returns the output filepath as a STRING for downstream nodes.
macOS QuickLook, Finder thumbnails, and Preview.app all render the TIFF natively (Deflate/ZIP compression).
Save Image (XMP)
Saves a single image as PNG, WEBP, or JPEG with XMP metadata embedded inline.
| Input | Type | Description |
|---|---|---|
| images | IMAGE | Image batch to save |
| json_metadata | STRING | Optional JSON to embed in cfl:extra |
| filename_prefix | STRING | Output filename prefix |
| author | STRING | Author name embedded in XMP |
| format | PNG/WEBP/JPEG | Output format |
| quality | INT | Quality for lossy formats (1–100) |
PNG files also get workflow and prompt tEXt chunks for native ComfyUI workflow reload.
XMP fields
All saved files embed a custom XMP block:
| Field | Content |
|---|---|
| cfl:workflow | Full ComfyUI node graph JSON |
| cfl:prompt | Execution prompt graph JSON |
| cfl:models | SHA256 hashes of all model files used |
| cfl:extra | Arbitrary JSON from json_metadata input |
| cfl:author | Author string |
| cfl:layers | Comma-separated layer names (TIFF only) |
Model hashes are collected automatically from the run graph and cached per session.
Why TIFF?
Most AI image outputs are saved as flat PNGs or JPEGs — one image, one file. When a pipeline produces multiple meaningful outputs (inpainting mask, outpainted region, heatmaps, composites), you either flood a folder with files or lose the intermediate layers entirely.
TIFF is the only widely-supported lossless format that natively handles multiple named layers in a single file — the same reason it has been the standard archival format in print, broadcast, and medical imaging for decades.
Per-layer compression. TIFF stores each page in its own Image File Directory (IFD), and each IFD carries its own compression tag. This means different layers can use different schemes in the same file — a preview layer at JPEG quality 90, mask layers at lossless Deflate, a float32 heatmap at uncompressed. Current nodes use Deflate/ZIP + delta predictor uniformly (~30–50% smaller than uncompressed), with full bit-depth preservation and no quality loss.
Multi-layer, single file. Each page carries a PageName tag (TIFF tag 285) used as the layer name. One file = one complete output set. No zip archives, no naming conventions to maintain.
Opens natively in Photoshop and Affinity Photo as layers. Drop the TIFF into Photoshop — each page appears as a separate layer in the Layers panel, named. Same in Affinity Photo, GIMP (via TIFF import), and darktable. This is a TIFF standard behavior, not a plugin requirement.
macOS native rendering. Finder thumbnails, QuickLook spacebar preview, and Preview.app all decode the file without any third-party software.
XMP survives the round-trip. The full ComfyUI workflow JSON, model hashes, and any custom metadata travel with the file through Photoshop, file systems, and archives — readable by exiftool, Lightroom, and any XMP-aware tool.
See also
comfy-viewer — macOS viewer for ComfyUI image metadata. Right-click any PNG or TIFF saved by these nodes → Open With → ComfyQL to see a split panel: image on the left, embedded workflow and model hashes on the right.
Install
cd ComfyUI/custom_nodes
git clone https://github.com/connerkward/comfyui-save-image-xmp.git
pip install tifffile
Or via ComfyUI Manager: search comfyui-save-image-xmp.
Run ComfyUI workflows without the setup
No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.