Meta Converter - Metadata Preserving Image Converter

Meta Converter is a Windows image converter designed to preserve metadata where possible.

It is useful for creators who need simple format conversion without losing important image information.

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: v3.52

Last updated: Feb 16, 2026

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: Convertible while preserving metadata in all formats.
• ComfyUI: PNG/WebP can be converted while preserving metadata. When converting to JPG, the workflow is output separately as a JSON file.
• NovelAI: PNG/WebP can be converted while preserving metadata. When converting to JPG, a small companion file for metadata preservation is output separately.

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

Trial Version

• Number of images per batch: Up to 8
• Download Link

Notes

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

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
• v3.50 (2026/02/04) – Added NovelAI WebP support
• https://note.com/nekzuk/n/nf8f1cad57493

Support: nekzuk.software@gmail.com

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