14 Useful Free and Open Source CSS Parsers

Cascading Style Sheets, commonly known as CSS, is a language that focuses on the design and presentation aspects of documents created with markup languages like HTML or XML. This includes variants of XML such as SVG, MathML, or XHTML. CSS plays a vital role in the functioning of the World Wide Web, standing alongside HTML and JavaScript as one of the foundational technologies.

A CSS parser is a component of a web browser (or any CSS-processing tool) that reads CSS code and turns it into a structured format the computer can understand and use. This roundup focuses on CSS parsers for Linux.

Here’s our verdict captured in a legendary LinuxLinks-style ratings chart. Only free and open source software is eligible for inclusion here.

Ratings chart

CSS Parsers
PostCSSTransform styles with JavaScript plugins
Lightning CSSParser, transformer, bundler, and minifier
ReworkPlugin framework for CSS preprocessing
MenschNon-validating CSS parser
CSSTreeTool set for CSS
StylisLightweight CSS preprocessor
tinycss2CSS parser and generator
LibCSSCSS parser and selection engine
Ruby CSS ParserLoad, parse and cascade CSS rule sets
ParserLibCSS3 SAX-inspired parser
css-parserFork of the cssutils project
StylecowModern CSS to all browsers
Gonzales PECSS parser which plays nicely with preprocessors
CSSOMCSS parser written in pure JavaScript
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This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

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