PostCSS

A tool for transforming CSS with JavaScript

Increase code readability

Add vendor prefixes to CSS rules using values from Can I Use. Autoprefixer will use the data based on current browser popularity and property support to apply prefixes for you.

:fullscreen {
}
CSS input
:-webkit-full-screen {
}
:-ms-fullscreen {
}
:fullscreen {
}
CSS output

Use tomorrow’s CSS today!

PostCSS Preset Env, lets you convert modern CSS into something most browsers can understand, determining the polyfills you need based on your targeted browsers or runtime environments, using cssdb.

body {
  color: lch(53 105 40);
}
CSS input
body {
  color: rgb(250, 0, 4);
}
CSS output

The end of global CSS

CSS Modules means you never need to worry about your names being too generic, just use whatever makes the most sense.

.name {
  color: gray;
}
CSS input
.Logo__name__SVK0g {
  color: gray;
}
CSS output

Avoid errors in your CSS

Enforce consistent conventions and avoid errors in your stylesheets with stylelint, a modern CSS linter. It supports the latest CSS syntax, as well as CSS-like syntaxes, such as SCSS.

a {
  color: #d3;
}
CSS input
app.css
2:10 Invalid hex color
Console output

Sponsors

Is your company using PostCSS? Join this list!

Trusted by industry leaders

Built by community for community

PostCSS is developed and maintained by hundreds of open source contributors. Become part of the family — submit your first Pull Request!