Convert all files in directory to webp, with default params, or standard cwebp params passed from command

webp-convert-directory.sh

#!/bin/bash

PARAMS=('-m 6 -q 70 -mt -af -progress')

if [ $# -ne 0 ]; then
	PARAMS=$@;
fi

cd $(pwd)

shopt -s nullglob nocaseglob extglob

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

Nice script! In my case I have a folder with many subfolders. Therefore, this variant unfortunately does not help me. ;)

Hi

I use this code block on ZSH :

#!/bin/zsh

# Define the image types to search for
image_types=("*.jpeg" "*.jpg" "*.tiff" "*.tif" "*.png")

# Iterate over each image type
for type in "${image_types[@]}"; do
  # Find files of the specified image type
  find . -type f -iname "$type" | while read -r IMAGE; do
    # Get the filename without extension
   filename_without_extension=${IMAGE%.*}
   
    # Convert the image to WebP format
    cwebp "$IMAGE" -o "${filename_without_extension}.webp"

    echo "Converted $IMAGE to ${filename_without_extension}.webp"

     # rm -rf "$IMAGE";
  done
done

echo "Conversion complete."

Please note that, you must not run this script on macOS root folder. Only run in needed folder. It finds all images at sub directiories and convert to web without removing original one. Save as "*.sh" and elevate it from terminal:

chmod +x name-of-shellfile