ComfyUI Extension: ComfyUI-Metadata-Inspector

Authored by TakkunRed

Created

Updated

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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.

A specialized suite of custom nodes for ComfyUI designed to hunt down and visualize generation parameters (prompts, steps, samplers, etc.) embedded in AI-generated images. It works across different formats and platforms (ComfyUI, Automatic1111, Civitai, and more).

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Custom Nodes (3)

README

ComfyUI-Metadata-Inspector

A specialized suite of custom nodes for ComfyUI designed to hunt down and visualize generation parameters (prompts, steps, samplers, etc.) embedded in AI-generated images. It works across different formats and platforms (ComfyUI, Automatic1111, Civitai, and more).

GitHub license ComfyUI

Core Mission

The primary goal of this tool is to reveal hidden prompt strings and workflow structures from AI-generated content. Whether it's a PNG with a complex node graph or a JPEG with a text-based prompt hidden in EXIF data, this inspector brings it to light.

Node Screenshot

Node Descriptions

This extension includes three essential nodes to complete the inspection workflow:

1. Load Image w/ Name

  • Purpose: Provides a flexible way to load images.
  • Function: Unlike the standard loader, it allows you to input a filename via string or absolute path, making it easier to integrate with dynamic file-handling workflows.

2. Extract Metadata (The Core)

  • Purpose: The "brain" that scans the image file for generation data.
  • Function:
    • PNG Deep Scan: Extracts full ComfyUI/A1111 prompt and workflow JSONs.
    • JPEG/EXIF Recovery: Deep-scans EXIF sub-IFDs to find hidden UserComment and ImageDescription tags often used by Civitai and Tensor.art.
    • Smart JSON Recovery: Detects JSON structures even when they are buried inside plain-text metadata.

3. JSON Tree Viewer (Web UI)

  • Purpose: Provides a human-readable visualization of the raw data.
  • Function: Transforms the raw metadata string into an interactive, foldable tree view directly on the ComfyUI canvas. It highlights potential prompt areas in orange for quick identification.

Key Features

  • Hidden Prompt Extraction: Recovers data from JPEGs where standard tools fail.
  • Workflow Reconstruction Support: Outputs raw JSON strings that can be used to understand complex node setups.
  • Multi-Platform Compatibility: Supports metadata formats from ComfyUI, Automatic1111, and various web-based generators.

Installation

Manual Install

cd ComfyUI/custom_nodes
git clone https://github.com/TakkunRed/ComfyUI-Metadata-Inspector.git

How to Use

  1. Place Load Image w/ Name.
  2. Connect it to Extract Metadata.
  3. Connect the metadata_json output to JSON Tree Viewer.
  4. Input your image path and run the queue to see the hidden prompt data.

License

MIT

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.

Learn more