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[Utility & Helpers](/categories/utility) 4. / 5. falschenzug/php-remove-unused-css ActiveLibrary[Utility & Helpers](/categories/utility) falschenzug/php-remove-unused-css ================================= PHP Remove Unused CSS is a tool to remove unused CSS from your website using PHP 12PHP Since Jul 16Pushed 1y agoCompare [ Source](https://github.com/Flaschenzug/php-remove-unused-css)[ Packagist](https://packagist.org/packages/falschenzug/php-remove-unused-css)[ RSS](/packages/falschenzug-php-remove-unused-css/feed)WikiDiscussions master Synced 1mo ago READMEChangelogDependenciesVersions (1)Used By (0) Overview -------- [](#overview) PHP Remove Unused CSS is a tool to remove unused CSS from your website using PHP. Developed by Momentum 81 - . Updated by ``` - IMPORTANT! MAKE SURE YOU READ THE GUIDE FIRST OR YOU MAY INADVERTENTLY OVERWRITE YOUR CSS ``` The main idea is to first compile your CSS into as few files as possible, then you would remove the extra classes using this package, then use this (or another) package to minify the CSS. Often this is done with JS however that can raise issues if you want to work this into a pure PHP development flow. Installation ------------ [](#installation) Installation via composer: ``` composer require Flaschenzug/php-remove-unused-css (original Version: composer require Momentum81/php-remove-unused-css ) ``` Example ------- [](#example) ``` $removeUnusedCss = new \Momentum81\PhpRemoveUnusedCss\RemoveUnusedCssBasic(); $removeUnusedCss->whitelist('.fab', '.far', '.fal') ->styleSheets(['ARRAY','WITH','paths']) ->htmlFiles(['ARRAY','WITH','paths']) ->setFilenameSuffix('.refactored.min') ->minify() ->refactor() ->saveFiles(); ``` Classes ------- [](#classes) - Basic ### Basic Class [](#basic-class) The basic class is created using `RemoveUnusedCssBasic`. This is essentially a 'dumb' system that won't traverse the DOM in any way and will just include a selector if it's lowest level appears in the CSS. That said, this can still provide some significant savings in file size, especially when you're using a package like Bootstrap. ``` $removeUnusedCss = new \Momentum81\PhpRemoveUnusedCss\RemoveUnusedCssBasic(); ``` The basic class only weakly matches, lets look at the following HTML: ``` Hello World ``` The following CSS Classes would match and be kept, despite the `.hello` class being used in the HTML not being inside a parent element using the class `.test`: ``` .test .hello {} .test .hello::after {} ``` ### Available Methods [](#available-methods) MethodDescription`whitelist(...$selectors)`Here you can provice multipleCSS selectors to whitelist, ensuring they remain in the CSS even if they are not present in the HTML.`styleSheets(...$styleSheets)`Here you can provide glob compatible absolute paths to the stylesheets you want to refactor. For example in Laravel, you could use `public_path('**/*.css')`.`htmlFiles(...$htmlFiles)`Here you can provide glob compatible absolute paths to the HTML files (Can be any text file type, not just `.html`) that you want to scan for selectors to keep in your refactored CSS. For example in Laravel, you could use `resource_path('**/*.blade.php')`.`setFilenameSuffix($string)`By default the platform will overwrite the stylesheets it finds (When saving as files), here you can provide a suffix for the file name - this will get appended before the file type. So `stylesheet.css` could become `stylesheet.refactored.min.css`. The default value is `.refactored.min`. IMPORTANT: If you do not specify this method, your original files will be OVERWRITTEN if you use `saveFiles()`!`minify($bool)`If specified, this will perform minification on the CSS before it's saved/returned, using the package `matthiasmullie/minify` ()`skipComment($bool)`Specify if we should skip the comment at the top of the CSS file`comment($string)`Specify custom text for the comment at the top of the CSS file - use the variable `:time:` for the date and time to be added in its place. Don't forget to add your opening and closing tags for the comment: `/* and */`.`refactor()`This method performs the refactoring.`saveFiles()`This will save the new (Or overwritten) files`returnAsText()`This will return the refactored CSS as an array of files with text rather than writing them to real files. ### Health Score 15 — LowBetter than 3% of packages Maintenance27 Infrequent updates — may be unmaintained Popularity4 Limited adoption so far Community8 Small or concentrated contributor base Maturity18 Early-stage or recently created project Bus Factor1 Top contributor holds 75% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Community Maintainers ![](https://www.gravatar.com/avatar/7dbada210d2babde91133f155af7b1700f57f84d3bea4aaf21611e747ad22ea6?d=identicon)[flaschenzug](/maintainers/flaschenzug) --- Top Contributors [![BenGriffiths](https://avatars.githubusercontent.com/u/1621106?v=4)](https://github.com/BenGriffiths "BenGriffiths (12 commits)")[![Flaschenzug](https://avatars.githubusercontent.com/u/2140638?v=4)](https://github.com/Flaschenzug "Flaschenzug (4 commits)") ### Embed Badge ![Health badge](/badges/falschenzug-php-remove-unused-css/health.svg) ``` [![Health](https://phpackages.com/badges/falschenzug-php-remove-unused-css/health.svg)](https://phpackages.com/packages/falschenzug-php-remove-unused-css) ``` PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)