optimize-images
Original：🇺🇸 English
Translated
Batch optimize images for web delivery. Converts to WebP, generates multiple sizes, and creates blur placeholders.
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Added on
NPX Install
npx skill4agent add forever-efficient/pitfal-solutions-website optimize-imagesTags
Translated version includes tags in frontmatterSKILL.md Content
View Translation Comparison →Optimize Images
Optimize images in the specified directory for web delivery.
Arguments
- - Directory path containing images to optimize (default:
$ARGUMENTS)./public/images
Process
- Find all images:
bash
find ${ARGUMENTS:-./public/images} -type f \( -name "*.jpg" -o -name "*.jpeg" -o -name "*.png" \) - For each image, generate:
- WebP versions at 320w, 640w, 1280w, 1920w, 2560w
- Thumbnail at 150x150, 300x300
- Blur placeholder (10px width, base64)
Commands
bash
# Install sharp-cli if not present
pnpm add -D sharp-cli
# Optimize single image example
npx sharp -i input.jpg -o output.webp --format webp --quality 80
# Generate srcset for an image
for size in 320 640 1280 1920 2560; do
npx sharp -i input.jpg -o "output-${size}w.webp" --resize $size --format webp --quality 80
done
# Generate thumbnail
npx sharp -i input.jpg -o thumb-150.webp --resize 150 150 --fit cover --format webp
# Generate blur placeholder
npx sharp -i input.jpg -o blur.webp --resize 10 --format webp --quality 20Output
Report:
- Number of images processed
- Original total size
- Optimized total size
- Size savings percentage