ComfyUI Image Metadata Extension

Custom node for ComfyUI. It adds additional metadata for saved images, ensuring compatibility with the Civitai website.

*This is a fork of nkchocoai/ComfyUI-SaveImageWithMetaData.*

Key differences:

Simplified the node by removing unnecessary fields for general use.

Included metadata for LoRa weights.

The subdirectory_name field allows you to specify a custom name or use mask values to create a subdirectory for saved images. For example, using the mask %date:yyyy-MM% (formatting options) will create a directory named with the current year and month (e.g., 2024-10), organizing your images by the date they were generated.

The output_format defines the saved image format:

png, jpg, webp – saves in the specified format.

png_with_json, jpg_with_json, webp_with_json – saves in the chosen format and writes workflow metadata to a JSON file with the same name.

The quality option has the following levels:

max / lossless WebP – 100%

high – 80%

medium – 60%

low – 30%

*(Lower quality, smaller file size. PNG images ignore this setting.)*

The metadata_scope option controls metadata inclusion:

full – default metadata with additional metadata.

default – same as the SaveImage node.

parameters_only – only A1111-style metadata.

workflow_only – workflow metadata only.

none – no metadata.

Installation

Recommended Installation

Use the ComfyUI-Manager to install.

comfyui_image_metadata_extension

Manual Installation

Navigate to the custom_nodes directory inside your ComfyUI folder.

Clone this repository:

“`bash

git clone https://github.com/edelvarden/comfyui_image_metadata_extension.git

“`

Usage

Basic usage looks like (workflow.json):

Lora strings are automatically added to the prompt area, allowing the Civitai website to understand the weights you used. Other metadata is also successfully included.

Formatting Options

The filename_prefix and subdirectory_name support the following options:

| Key | Information to be Replaced |

| ————— | ————————————- |

| %seed% | Seed value |

| %width% | Image width |

| %height% | Image height |

| %pprompt% | Positive prompt |

| %pprompt:[n]% | First n characters of positive prompt |

| %nprompt% | Negative prompt |

| %nprompt:[n]% | First n characters of negative prompt |

| %model% | Checkpoint name |

| %model:[n]% | First n characters of checkpoint name |

| %date% | Date of generation (yyyyMMddhhmmss) |

| %date:[format]% | Date of generation |

See the following table for the identifiers specified by [format] in %date:[format]%:

| Identifier | Description |

| ———- | ————————— |

| yyyy | Year |

| MM | Month |

| dd | Day |

| hh | Hour |

| mm | Minute |

| ss | Second |

Supported Nodes and Extensions

Comfy Core Nodes:

modules/defs/samplers.py

modules/defs/captures.py

Third-Party Nodes:

modules/defs/ext/

[!TIP]

If you encounter errors with the “full” metadata scope, it may be because your third-party nodes are not supported. In that case, you can either use alternative nodes from Comfy Core or create a custom extension in the ext folder.