Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg.

You probably want imagemin-guetzli instead.

$ npm install guetzli

import {execFile} from 'node:child_process';
import guetzli from 'guetzli';

execFile(guetzli, ['input.jpg', 'output.jpg'], error => {
	console.log('Image minified!');
});

$ npm install --global guetzli

$ guetzli --help

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