webp is a command-line tool to streamline the process of converting images to the WebP graphics file format in a pipeline.
[!NOTE] This has been developed for personal use. Features have only been implemented as and when required. If you have a specific use-case not covered by the current implementation, please open an issue or submit a pull request.
# Install bun
curl -fsSL https://bun.sh/install | bash
# Install ffmpeg
sudo apt install ffmpeg
# Install exiftool
wget https://exiftool.org/Image-ExifTool-12.77.tar.gz
gzip -dc Image-ExifTool-12.77.tar.gz | tar -xf -
cd Image-ExifTool-12.77
perl Makefile.PL
sudo make install
rm -rf Image-ExifTool-12.77.tar.gz Image-ExifTool-12.77
# Install webp
bun install kru-webp --global| Parameter | Description | Default | Example |
|---|---|---|---|
ext |
Only include files with these extensions | all files | ext=.jpg/.png |
out |
Output directory | input directory | out=/path/to/output |
lossless |
Enable lossless compression | disabled | lossless |
compression |
Compression level for lossless compression | 6 | compression=0 |
quality |
Quality level for lossy compression | 75 | quality=100 |
scale |
Resize the image by scale factor | 1 | scale=0.5 |
width |
New image width | source width | width=960 |
height |
New image height | source height | height=540 |
crop |
Crop instead of resize | disabled | crop |
centerh |
Center the crop horizontally | disabled | centerh |
centerv |
Center the crop vertically | disabled | centerv |
center |
centerh + centerv
|
disabled | center |
verbose |
Enable verbose output | disabled | verbose |
# Convert a PNG image
webp image.png
# Convert a directory of files
webp /path/to/directory
# Convert a directory of files with extension filter
webp /path/to/directory ext=.jpg/.png # jpg and png only
# Output files in a different directory
webp /path/to/directory out=/path/to/output
# Enable lossless compression (default is lossy)
webp image.png lossless
# Compression level for lossless compression (default is 6)
webp image.png compression=0 # fast but large
# Quality level for lossy compression (default is 75)
webp image.png quality=100 # best quality
# Resize the image by scale factor
webp image.png scale=0.5 # scale the image to 50%
# Specify new image dimensions (resizes the image)
webp image.png width=960 height=540
webp image.png width=960 # height is automatically calculated to maintain aspect ratio
webp image.png width=960 height=source # source height is kept
# Crop image instead of resize
webp image.png width=500 height=500 crop
webp image.png width=500 height=500 crop center # center the crop
webp image.png width=500 height=500 crop centerh # center the crop horizontally