webp_batch.sh

#!/bin/bash

# Batch Convert all images in folder to webp.
# Create .sh file, paste this into the file, make it executable and run it; "./webp_batch.sh /path/to/folder/"

PATH=/usr/local/bin:/usr/bin:/bin

PARAMS=('cwebp -q 75 -alpha_q 10') # -alpha_q 10 is for images with transparent background

cd $1 || exit 1

shopt -s nullglob nocaseglob extglob


for FILE in *.@(jpg|jpeg|tif|tiff|png); do 
    cwebp $PARAMS "$FILE" -o "${FILE%.*}".webp;
done


echo "Conversion complete for folder " $1