⚡ CSS Tools in the United Kingdom

CSS tools are software applications and libraries for processing CSS (Cascading Style Sheets), including static code analysis, transformation, cleanup, and more.

The United Kingdom of Great Britain and Northern Ireland (UK) is a Western European country with a population of over 67 million people.

According to our research, CSS tools are used on 0.9% of websites from the United Kingdom.

⭐ Most Popular in 2026

The following chart shows the top CSS tools in the United Kingdom in 2026, based on market share.

The most popular is RTLCSS with an impressive share of 56.8%, followed by PostCSS with 56.4% and Autoprefixer with 34.3%.

🚀 Highlights

Here is a list of the top tools that are more popular in the United Kingdom than worldwide.
Differences between global and country rankings are shown in parentheses.

✨ Best CSS Tools

Below is a more detailed list of 7 CSS tools used on sites from the United Kingdom, ranked by their market share.

RankNameMarket share
1
RTLCSS
Jordan

A framework for converting Left-To-Right CSS to Right-To-Left.

FreeOpen source
2
PostCSS

A tool for transforming CSS styles with JS plugins.

FreeOpen source
3
Autoprefixer

A PostCSS plugin to parse CSS and add vendor prefixes to CSS rules using values from Can I Use.

FreeOpen source
4
Stylelint

A linter for CSS and SCSS stylesheets that helps to avoid errors and enforce conventions.

FreeOpen source
5
PurgeCSS

A tool to analyze and remove unused CSS.

FreeOpen source
6
Animista

A CSS animation library of ready-made CSS animations.
7
Custom Shape Dividers

An online tool to generate fully responsive CSS dividers.

👉 See Also

Data is based on the analysis of 157,370 websites from the United Kingdom.
Statistics were last calculated on .
For details, see our methodology and disclaimer.