Optimize images from a Node.js script

Jan 20, 2023

Learn how to optimize images from a Node.js script with sharp, converting a PNG to lossless webp and resizing or rotating it in just a few lines.

~~~

One tool I’ve been using to optimize images is sharp.

import sharp from 'sharp'

Here’s how I used it to convert images to webp:

await sharp('image.png')
  .webp({ lossless: true })
  .toFile('image.webp')

It can do a lot more image processing stuff like rotate resize etc.

If you just need to resize or compress a couple of images without writing a script, I made a browser-based image resizer tool — nothing gets uploaded anywhere.

Tagged: Node.js · All topics

~~~