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Updated by Jennifer Mavtrevor Wilson on Jul 23, 2017
Headline for Free CSS Unminify Tools
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Free CSS Unminify Tools

This is a list of some free CSS unminify tools.


Online CSS Unminifier

A simple tool to unminify CSS. It's useful if you want to look at a site's CSS, but you can only get your hands on the minified version. It is very simple and also lets you specify tab with. The idea is partly inspired by existing javascript beautifiers and unminifiers.


You may be aware of js unminifiers or beautifiers (such as jsbeautifier). I found myself wanting something similar for making minified CSS legible, so I built a simple tool using javascript to unminify CSS. It uses several regular expressions (and sometimes a split followed by a join) to generate the clean code and it also lets you specify tab width.

Pretty Diff - The difference tool

Pretty Diff tool can minify, beautify (pretty-print), or diff between minified and beautified code. This tool can even beautify and minify HTML.

Minifier - compress JavaScript or CSS, deminify JavaScript or CSS, create SQL INSERT commands from CSV

Online tool to minify/beautify or to compress/decompress javascript and css code. It also can transform your CSV file to SQL INSERT statements

Michael Bianco | Web Designer & Developer - Software - CSS Optimizer - Uncompress

You can use this utility to uncompress your CSS files; in other words make them nicely formatted again. You can also download a Shell Script which accomplishes the same task as this online uncompressor. If you have any suggestions, bugs, or general comments don't hesitate to .