Meta Converter - Metadata Preserving Image Converter

Meta Converter is a tool that converts multiple images to PNG / JPEG / WEBP while preserving metadata.

It can convert and compress images in a format that can be imported into WebUI PNGInfo, and it also supports Eagle—one of its key selling points.

Latest version: v3.00

Last updated: Nov 7, 2025

Details / Features

Designed mainly for AI image workflows:

• Batch-convert multiple images while keeping metadata
• (PNG / WEBP → JPEG / PNG / WEBP)
• Note: Converting PNG → JPEG can reduce file size dramatically (often down to around 1/10).
• Converted images can be imported back into WebUI
• Supports minor adjustments such as quality settings and image downscaling
• Supports converting Eagle (https://jp.eagle.cool) libraries
• Can also be launched from the command line

Supported AI Data

• A1111 WebUI: PNGInfo remains readable after conversion
• ComfyUI: When converting to JPG, the workflow is exported separately as a JSON file
• NovelAI: When converting to JPG or WEBP, a small companion file is exported to preserve metadata

Basic Usage

1. Select a folder containing images, or drag & drop image files/folders
2. Choose output format and quality settings
3. Click Start Conversion

Notes

• Processing may take some time.
• Commercial use (individuals): Allowed with purchase of this product.
• Commercial use (companies/organizations): Please contact us separately.

System Requirements

• Windows 10 / 11 (64-bit)
• Memory: 8GB+ recommended

Update History

• v1.00 (2025/05/11) – Initial release
• https://note.com/nekzuk/n/nf7481fbb6cf0
• v2.00 (2025/08/15) – Added Eagle support and more
• https://note.com/nekzuk/n/n58408ce641a8
• v2.50 (2025/09/18) – Added ComfyUI support and more
• https://note.com/nekzuk/n/nb337180883e3
• v3.00 (2025/11/07) – Added NovelAI support and more
• https://note.com/nekzuk/n/na7837cdb4a7b

Support: sydateset@gmail.com

Refunds: Digital downloads are non-refundable (please contact support if you have issues).