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Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


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Minify PNG, JPEG, GIF and SVG images





Minify PNG, JPEG, GIF and SVG images with imagemin

Issues with the output should be reported on the imagemin issue tracker.


npm install --save-dev gulp-imagemin



import gulp from 'gulp';
import imagemin from 'gulp-imagemin';

export default () => (

Custom plugin options

import imagemin, {gifsicle, mozjpeg, optipng, svgo} from 'gulp-imagemin';

// …
	gifsicle({interlaced: true}),
	mozjpeg({quality: 75, progressive: true}),
	optipng({optimizationLevel: 5}),
		plugins: [
				name: 'removeViewBox',
				active: true
				name: 'cleanupIDs',
				active: false
// …

Custom plugin options and custom gulp-imagemin options

import imagemin, {svgo} from 'gulp-imagemin';

// …
		plugins: [
				name: 'removeViewBox',
				active: true
], {
	verbose: true
// …


Comes bundled with the following optimizers:

  • gifsicleCompress GIF images, lossless
  • mozjpegCompress JPEG images, lossy
  • optipngCompress PNG images, lossless
  • svgoCompress SVG images, lossless

These are bundled for convenience and most users will not need anything else.

imagemin(plugins?, options?)

Unsupported files are ignored.


Type: Array
Default: [gifsicle(), mozjpeg(), optipng(), svgo()]

Plugins to use. This will completely overwrite all the default plugins. So, if you want to use custom plugins and you need some of defaults too, then you should pass default plugins as well. Note that the default plugins come with good defaults and should be sufficient in most cases. See the individual plugins for supported options.


Type: object


Type: boolean
Default: false

Enabling this will log info on every image passed to gulp-imagemin:

gulp-imagemin: ✔ image1.png (already optimized)
gulp-imagemin: ✔ image2.png (saved 91 B - 0.4%)

Type: boolean
Default: false

Don't log the number of images that have been minified.

You can also enable this from the command-line with the --silent flag if the option is not already specified.