Chill Image Save Plus for ComfyUI

An enhanced image save node for ComfyUI that extends the built-in SaveImage node with additional format support, quality control for lossy formats, and optional metadata stripping.

Features

• Multiple Format Support: Save images in PNG, JPEG, WebP, TIFF, and BMP formats
• Quality Control: Adjustable quality (1-100) for lossy formats (JPEG, WebP)
• Metadata Options: Choose to embed or strip metadata (workflow, prompt)
• Batch Processing: Handles batched images with automatic counter incrementing
• RGBA Handling: Automatically converts RGBA images to RGB for formats that don't support alpha (JPEG, BMP)

Installation

Method 1: Git Clone (Recommended)

cd ComfyUI/custom_nodes
git clone git@github.com:Megachill/ComfyUI-ChillEasyImageSave.git

Method 2: Manual Download

1. Download this repository as a ZIP file
2. Extract it to ComfyUI/custom_nodes/
3. Rename the folder to ComfyUI-ChillEasyImageSave

Dependencies

The node requires Pillow >= 9.0.0 (already included with ComfyUI):

Standard Installation:

pip install -r requirements.txt

ComfyUI Portable (Windows): For ComfyUI Portable installations, use the embedded Python:

../../../python_embeded/python.exe -m pip install -r requirements.txt

Run this command from within the ComfyUI/custom_nodes/ComfyUI-ChillEasyImageSave/ folder.

Usage

1. Start ComfyUI
2. The node appears in the node library under the "Chill" category
3. Search for "Chill Image Save Plus" in the node search (double-click on canvas)

Parameters

Parameter	Description	Default
images	Input image tensor from a node (e.g., VAE Decode, Load Image)	Required
filename_prefix	Prefix for saved files. Supports subfolders (e.g., "outputs/test")	"Chill"
format	Output format: png, jpg, webp, tiff, bmp	"png"
quality	Quality for lossy formats (JPEG, WebP). Range: 1-100	95
strip_metadata	If true, removes all metadata from output	false

Format Features

Format	Quality Control	Alpha Support	Metadata Support
PNG	No	Yes	PNG text chunks
JPEG	Yes	No (RGB conversion)	EXIF UserComment
WebP	Yes	Yes	EXIF
TIFF	No	Yes	TIFF tags
BMP	No	No (RGB conversion)	None

Metadata

When strip_metadata is disabled:

• PNG: Embeds workflow and prompt as PNG text chunks
• JPEG: Embeds metadata in EXIF UserComment tag
• WebP: Embeds EXIF data
• TIFF: Embeds metadata in standard TIFF tags
• BMP: No metadata support

Example Workflow

See examples/workflow.json for a sample ComfyUI workflow demonstrating the node.

Tips

• Subfolders: Use / or \ in filename_prefix to save to subdirectories (e.g., "batch1/output")
• Quality Settings:
  • JPEG: 90-100 for high quality, 75-85 for web use, 50-70 for small file size
  • WebP: Similar to JPEG but generally produces smaller files at equivalent quality
• Transparency: Use PNG or WebP if you need to preserve alpha channel
• Maximum Compatibility: Use JPEG for broadest compatibility with other software

Compatibility

• ComfyUI: Latest version (tested with 2024 builds)
• Python: 3.10+
• Pillow: >= 9.0.0

License

MIT License - See LICENSE for details.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Support

For issues and feature requests, please use the GitHub issue tracker.