img2webp

Convert an image to WebP format

$ img2webp [path/to/image] -o [path/to/output.webp]

img2webp [options] input -o output

img2webp converts images to the WebP format developed by Google. WebP provides superior compression compared to JPEG and PNG while maintaining good visual quality, making it ideal for web images.
The tool supports both lossy and lossless compression modes. It can also create animated WebP images from multiple input frames.

-o FILE

Output WebP filename

Use lossy compression

Use lossless compression (default for PNG input)

Quality factor (0-100, default 75)

Compression method (0-6, default 4)

Loop count for animations (0 = infinite)

Frame duration in milliseconds for animations

Part of the libwebp package. Input format support depends on linked libraries. Very old browsers may not support WebP format. Some image editors have limited WebP support.

WebP was developed by Google and announced in 2010 as an open standard for compressed web images. The format is based on the VP8 video codec and offers significant size reductions compared to traditional formats.

cwebp(1), dwebp(1), gif2webp(1)