Top Tools for Batch Image Conversion
Converting images one by one is fine if you only have a couple of files. But what if you have a folder containing hundreds of PNG screenshots that you need to convert to WebP for a website?
Here are the best tools for batch image conversion, ranging from easy online solutions to powerful command-line utilities.
1. Online Converters (Best for Quick Tasks)
If you don't want to install software, online batch converters are the easiest option.
- ImageConverter: Our tool allows you to upload multiple files at once, choose your target format, adjust quality settings, and download all compressed files in a single zip archive.
- Pros: Fast, runs entirely in the browser, no installation required.
2. ImageMagick (Best for Developers & Power Users)
For developers and system administrators, ImageMagick is the industry standard command-line suite. It can read and write images in over 200 formats.
To batch convert all PNGs in a folder to WebP using the terminal:
magick mogrify -format webp *.png
To batch convert and resize them to a maximum width of 800px:
magick mogrify -resize 800x -format jpg *.png
- Pros: Incredibly fast, scriptable, and highly customizable.
3. IrfanView (Best for Windows Desktop)
IrfanView is a lightweight, classic graphic viewer for Windows that has a built-in batch conversion engine.
- How to use: Press
Bon your keyboard, select your input files, choose the output directory, and click "Start Batch." - Pros: Extremely fast, supports advanced renaming patterns and cropping during conversion.