Offline Image Batch Converter

Select input file(s)

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Target format

[select from below:] PNG (does not support animation) JPEG (does not support transparency) GIF (does not support animation) WEBP (does not support animation) BMP (does not support transparency)

Options

Resize by percentage?

Resize to width ("0" for auto) Resize to height ("0" for auto)

Resize percentage ("100" for original size)

Compression quality (for JPEG and WEBP) Background color (for JPEG and BMP)

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Convert

Output file list

📥 Download all images ✘ Clear all images

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About

This is a tool to batch convert images between 5 common image formats. It does not connect to the Internet, and does all the conversion inside the browser. If you doubt it, you can turn on Airplane Mode!

You can also download this HTML page and use this tool fully offline. All the required data and code is contained in the HTML document.

This tool is open-source! For issues and improvements, go to the GitLab repo.

Coded with ♥ by Haley Halcyon

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