Open-source CSS projects categorized as PostCSS

Top 8 CSS PostCSS Projects

  • cssnano

    A modular minifier, built on top of the PostCSS ecosystem.

    Project mention: Classic Themes with Block Patterns in WordPress | dev.to | 2023-05-23

    For the sake of simplicity, my example setup uses a single-file plugin and puts all styles directly into a single style.css file without using further theme.css or theme.json files, which we might want to use depending on the requirements for customizability. Likewise, SASS / SCSS support can be added if it makes life easier for the developer(s) involved. But as we already use PostCSS to control autoprefixing and cssnano minification, we can also use it to support the latest and even upcoming CSS sytax like native CSS nesting.

  • rfs

    ✩ Automates responsive resizing ✩

    Project mention: I am interested in learning responsive design without the use of media query breakpoints. What is the term for this? Is it fluid design or something? Could you suggest some resources? | /r/web_design | 2023-03-05

    i use this, it saves me a lot of headache in making things responsive

  • Appwrite

    Appwrite - The open-source backend cloud platform. The open-source backend cloud platform for developing Web, Mobile, and Flutter applications. You can set up your backend faster with real-time APIs for authentication, databases, file storage, cloud functions, and much more!

  • turretcss

    Turret is a styles and browser behaviour normalisation framework for rapid development of responsive and accessible websites.

  • postcss-plugins

    PostCSS Tools and Plugins

    Project mention: What are some harsh truths that r/webdev needs to hear? | /r/webdev | 2023-06-03

    You can use this today if you're using PostCSS in your build process (which is the case if you use autoprefixer)! https://preset-env.cssdb.org/

  • HiQ

    A lightweight, progressive, high-IQ CSS framework.

    Project mention: Looking for suggestions for a CSS framework that is modifiable with custom properties (CSS variables). No less/sass/etc. | /r/Frontend | 2023-02-11

    https://jonathanharrell.github.io/hiq/ Look pretty nice. I haven’t used it. But looks to be exactly what you are asking for.

  • assembly

    Making the hard parts of designing for the web easy. (by mapbox)

  • tailpress

    A Tailwind CSS enabled Underscores theme (by pixeldevsio)

  • Mergify

    Updating dependencies is time-consuming.. Solutions like Dependabot or Renovate update but don't merge dependencies. You need to do it manually while it could be fully automated! Add a Merge Queue to your workflow and stop caring about PR management & merging. Try Mergify for free.

  • sea.css

    sea.css is a simple and easy to use css framework.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-06-03.

CSS PostCSS related posts


What are some of the best open-source PostCSS projects in CSS? This list will help you:

Project Stars
1 cssnano 4,509
2 rfs 3,217
3 turretcss 798
4 postcss-plugins 736
5 HiQ 302
6 assembly 131
7 tailpress 74
8 sea.css 4
Collect and Analyze Billions of Data Points in Real Time
Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.