PNG to WebP

As a UI Engineer taking care of web performance is a daily task. With this in mind, a recurrent task in the projects I work on is to convert .png files to .webp. For years I've tried a many tools, like Convert IO.

However, sometimes I needed to convert a lot of PNG files at the same time, and dragging and dropping them to an website, downloading and moving them to the project's folder were quite time-consuming. So, at some point I came across cwebp, which is a basically a CLI to convert .png into .webp easily:

  cwebp -q 100 image.png -o image.webp

The snippet

Okay, now we have a powerful CLI that does the heavy job for us, but it's still time-consuming run the command file-by-file, right? So, I ended up with a shell function that converts all .png files within a folder into .webp:

function png2webp () {
  for file in *; do
      cwebp -q 100 "$file" -o "${file%.png}.webp"
  done
}