CSS Optimization Tools

Stylesheets can be very large sometimes, to ensure your website loads quickly you need to optimize your CSS. Here I’ve compiled free online CSS optimization Tools which can clean, minify, optimize and re-format your stylesheets, check them out and select the one which fits your needs.

Styleneat – CSS Organizer

It organizes and standardizes your CSS – selectors, sub-selectors and properties – in a structure that makes it easier to define page areas and see how they relate to each other.


CSS Compressor – Online Code Compressor

Use this Cascading Style Sheets, CSS Compressor to compress CSS to reduce CSS code size and make your web pages load faster. You can select from four levels of compression, depending on how legible you want the compressed CSS to be versus degree of compression. It is quick, easy and free.



Format CSS in an elegant and readable way, exactly as you want with All CSS3 and vendor-specific CSS properties supported.


Clean CSS – Optmize and Format your CSS

CleanCSS is a powerful CSS optimizer and formatter. Basically, it takes your CSS code and makes it cleaner and more concise.


CSS Comb

The algorithm of CSScomb simulates web-technologist’s actions upon working with CSS-code to the limit. Usually to re-order code you move lines over each other considering comments in the code, multilines records of property values, hacks and everything that could be found in the real file. CSScomb reproduces these actions for you. This means that the parser “thinks” as a person editing the text, not as a blind robot parsing CSS.


Helium CSS

javascript tool to scan your site and show unused CSS.


CSS Beautifier

Beautifies your CSS automatically so that it is consistent and easy to read.


Code Beautifier – CSS Formatter and Optimiser

This tool is based on the popular open-source CSS parser and optimizer, CSS Tidy. Code Beautifier offers the most options compared to all of the tools in this article.


CSS Lint

CSS Lint points out problems with your CSS code. It does basic syntax checking as well as applying a set of rules to the code that look for problematic patterns or signs of inefficiency. The rules are all pluggable, so you can easily write your own or omit ones you don’t want.



Zbugs a site pure and simple with all the clean lines and tidy appearance, ZBugs does just that with your CSS Codes, minifying it.


The W3C CSS Validation Service

The W3C CSS Validation Service is a free software created by the W3C to help Web designers and Web developers check Cascading Style Sheets (CSS). It can be used on this free service on the web, or downloaded and used either as a java program, or as a java servlet on a Web server.



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