MGC - Metadata Gallery Converter | Prompts Editor

Herrscher_AGGA

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prompt civitai metadata tool gallery portable tensorart

v5.0 v4.5 v4.0

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About this version

🖼️ MGC - Metadata Gallery Converter MGC (Metadata Gallery Converter) is a free and open-source graphical application designed to view, edit, and convert metadata from images generated by AI tools such as ComfyUI, Stable Diffusion, and TensorArt, into a format compatible with Civitai. It is a portable, lightweight, and intuitive tool, ideal for managing AI-generated images without requiring installation.

Source code available on assets.

🎯 Purpose MGC simplifies the management of metadata for AI-generated images, eliminating the need to manually copy prompts and parameters. It addresses common issues, such as metadata loss when uploading images to Civitai, providing a unified interface to:

View images in a gallery with thumbnails. Extract and edit positive prompts, negative prompts, and generation parameters. Save metadata as .txt files or Civitai-compatible .png images. Customize the user experience with language, color, and keyboard shortcut options.

🛠️ Key Features

Image Gallery: Browse thumbnails of images in a folder, supporting .png, .jpg, .jpeg, and .webp formats.

Intuitive Navigation: Use arrow keys (↑, ↓, ←, →) or click thumbnails to explore the gallery, with global shortcuts throughout the application.

Automatic Metadata Extraction: Displays automatically:

Positive prompt.

Negative prompt.

Generation parameters (steps, sampler, seed, model, etc.).

Metadata Editing: Add or modify prompts and parameters manually if not detected.

Metadata Export: Save metadata to .txt files.

Embed metadata in Civitai-compatible .png images.

Copy prompts and parameters to the clipboard with a single click.

Prompt Generator: Import tags from platforms like Danbooru, with tools to clean and convert prompts.

Advanced Tools:

Customize keyboard shortcuts.

Batch export metadata to .txt.

Batch edit prompts (add prefixes/suffixes).

Adjust interface colors and transparency.

Zoom, rotate, and crop images.

Multilingual Support: Switch between English and Spanish with a button in the interface. Built-in Help: Access basic instructions via the "❓ Help" button.

📦 Requirements and Installation MGC is a portable application that requires no installation.

To get started:

Download: Obtain the mgc_mainv2.exe executable from Civitai or clone the repository from GitHub.

Folder Structure: Ensure the assets/iconos, assets/temp_demo, and assets/CHANGELOG folders are present. You may replace the contents of assets/temp_demo, but do not delete the folder or its icon.

System Requirements: Operating system: Windows 10 or higher (tested on Windows 11).

Supported formats: .png, .jpg, .jpeg, .webp. No additional dependencies required.

Note: If no image folder is selected, MGC defaults to assets/temp_demo.

💻 How to Use MGC

Open Folder: Click "Open Folder" to load a directory containing images (.png, .jpg, .jpeg, .webp).

Navigate the Gallery: Use arrow keys or click thumbnails to select an image.

View Metadata: Prompts and parameters are displayed automatically in the metadata tab.

Edit Metadata: If no metadata is detected, use manual fields to add prompts and parameters.

Copy or Save Metadata: Copy All: Copy prompts and parameters to the clipboard.

Save as .txt: Export metadata to a text file.

Save as .png: Embed metadata in a Civitai-compatible image.

Prompt Generator: Import tags from platforms like Danbooru and use cleaning and conversion tools.

Advanced Tools: Access options like custom shortcuts, batch export, batch prompt editing, zoom, rotation, or cropping from the "Other Advanced Tools" menu.

Help: Click the "❓ Help" button for basic in-app instructions.

Usage Example

Load a folder with images generated by Stable Diffusion. Select an image to view its prompts and parameters. Edit the positive prompt to add a specific description. Save the metadata as .txt or embed it in a new .png for uploading to Civitai.

📝 Notes

Compatibility: Optimized for images from ComfyUI, Stable Diffusion, and TensorArt. Other formats may require manual metadata editing.

Portability: All necessary resources are included in the executable and assets folders.

Support: Report bugs or suggest improvements on GitHub Issues or Civitai.

Languages: The interface supports English and Spanish, configurable via the 🌐 button. Free and Open Source: MGC is completely free and licensed under the MIT License.

🤝 Contribution We welcome contributions to improve MGC! To contribute:

Fork the repository on GitHub. Create a branch for your changes (git checkout -b feature/new-feature). Submit a pull request with a clear description of the improvements. Report bugs or ideas on GitHub Issues.

📜 License MGC is distributed under the MIT License. See the LICENSE file for details. 📌 Changelog See update details in assets/CHANGELOG/CHANGELOG_en.markdown (English) or assets/CHANGELOG/CHANGELOG_es.markdown (Spanish).

Developed with ❤️ by HerrscherAGGA for the AI community.

Model description

🖼️ MGC - Metadata Gallery Converter

MGC is a lightweight, portable app with a simple goal:
Make it easy to view, edit, and convert metadata from .png images generated by ComfyUI, Stable Diffusion, or TensorART—and make it all play nice with Civitai.

🔒 Update!

If your antivirus flags it as a false positive, don’t worry—it’s because I used auto-py-to-exe to package everything neatly and hide a bunch of Python folders.
I'm currently waiting for the digital signature.
And yes—it's open source. You can also find the version on my GitHub, or just check the included files in the article.

💡 Tip: If you prefer not to run it on your PC, try the Google Colab version. It's simpler, runs in your browser, and works just as well.

🎯 Why I Made This

Honestly, I was just tired of copying prompts manually.
When uploading images from TensorART to Civitai, the metadata often goes missing—even if Tiefsee can read it, retyping everything was a pain.

So I built MGC to fix that.

With it, you can:

Browse your images in a gallery view
Instantly see all prompts and settings
Copy, edit, and save them however you want
Export them in a Civitai-compatible format

🛠️ Key Features

✅ Thumbnail gallery (just drop a folder or drag in images)
✅ Supports .png, .jpg, .jpeg, and .webp
✅ Quick navigation with ↑ and ↓ keys
✅ Clearly shows:
- Positive & Negative Prompts
- Steps, Sampler, Seed, Model, etc.
✅ One-click “Copy All”
✅ Convert to Civitai format instantly
✅ Save prompts as .txt or embed them back into .png
✅ Language toggle (English & Spanish)
✅ Alerts you if metadata is missing (especially for .jpg)

📦 How to Use It

Extract the .zip wherever you like (even a USB stick).
Run MGC_byAGGA.exe.
Drop a folder or open one with the 📂 button.
Click a thumbnail or use the arrows.
That’s it — the metadata shows up automatically.

From there, you can:

Copy or edit the prompts
Save them as .txt
Save them as .png with fixed metadata
Convert them to Civitai format

ℹ️ Requirements

Works on Windows 8 or newer
Doesn’t need installation
Doesn’t need internet
Just works 🙂

🧪 Still Improving

This app is still growing.
If you find a weird image format, or have ideas for features you’d love to see, feel free to share them.
I made this for myself… but also for you, if you’re tired of redoing the same steps every time. 😅

👨‍💻 Made by a frustrated user (me)

Who just wanted his prompts back.

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Model Type	Other
Base Model	Other
Published	7/31/2025