Squoosh CLI Squoosh CLI is an experimental way to run all the codecs you know from the Squoosh web app on your command line using WebAssembly. The Squoosh CLI uses a worker pool to parallelize processing images. This way you can apply the same codec to many images at once. Squoosh CLI is currently not the fastest image compression tool in town and doesn’t aim to be. It is, however, fast enough to