pngquant

PNG converter and lossy image compressor. More information: https://pngquant.org/.

• Compress a specific PNG as much as possible and write result to a new file:

pngquant path/to/file.png

• Compress a specific PNG and override original:

pngquant --ext .png --force path/to/file.png

• Try to compress a specific PNG with custom quality (skip if below the min value):

pngquant --quality 0-100 path/to/file.png

• Compress a specific PNG with the number of colors reduced to 64:

pngquant 64 path/to/file.png

• Compress a specific PNG and skip if the file is larger than the original:

pngquant --skip-if-larger path/to/file.png

• Compress a specific PNG and remove metadata:

pngquant --strip path/to/file.png

• Compress a specific PNG and save it to the given path:

pngquant path/to/file.png --output path/to/file.png

• Compress a specific PNG and show progress:

pngquant --verbose path/to/file.png