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CSS Pre/Post Processing

Tools that convert or transform CSS from advanced syntaxes (Sass, Less, etc.), apply autoprefixing or lint checks, and optimize stylesheets.

The Linux Foundation

by The Linux Foundation

25 projects ・ Updated 14 Mar 2025

Project
Contributors
Organizations
Software value
Less.js
3,989
1,373
$1.5M
UIkit
3,263
575
$3.1M
UnoCSS
2,606
584
$3.5M
Stylus
2,358
899
$1.2M
Autoprefixer
1,539
500
$520K
PostCSS
1,530
529
$484K
Dart Sass
1,370
434
$3.3M
cssnano
1,133
430
$4.9M
Sprockets
1,035
413
$505K
Lightning CSS
878
355
$3.8M
PurgeCSS
850
238
$412K
rollup-plugin-postcss
619
222
$50K
Svelte Preprocess
614
210
$152K
CSSO
513
195
$385K
PostCSS Plugins
463
158
$14M
Liferay Frontend Projects
400
44
$12M
Extract CSS Chunks Webpack Plugin
295
106
$163K
bud.js
185
45
$2.7M
gulp-postcss
171
78
$25K
Autoprefixer for Ruby on Rails
0
0
$0
Encore
0
0
$0
Gulp Sass
0
0
$0
Less Loader
0
0
$0
MiniCssExtractPlugin
0
0
$0
postcss-loader
0
0
$0
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