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How to Minify Css With Laravel Mix?

3 minutes read

To minify CSS with Laravel Mix, you can simply call the .minify() method on the mix object. This method will minify your CSS files and create a minified version of them. For example, if you have a CSS file named styles.css, you can minify it using the following code:


mix.css('resources/css/styles.css', 'public/css') .minify();


This will minify the styles.css file and save the minified version to the public/css directory. Minifying your CSS files can help improve the performance of your website by reducing the file size of your stylesheets.


What tools can be used to analyze minified CSS files?

There are several tools that can be used to analyze minified CSS files:

  1. Online CSS Minifier: There are various online tools available that can minify CSS files and also provide an option to analyze the minified code.
  2. CSS Lint: CSS Lint is a popular tool that helps in analyzing CSS code for potential errors, warnings, and performance issues.
  3. Chrome Developer Tools: The "Sources" tab in Chrome Developer Tools can be used to analyze minified CSS files. You can pretty print the code, search for specific selectors, and debug any issues.
  4. CSS Compressor: There are tools like CSS Compressor that can help in analyzing and optimizing minified CSS files.
  5. CSS Stats: CSS Stats is a tool that provides insights into the size, complexity, and performance of a CSS file. It can help in analyzing minified CSS files to identify areas for optimization.
  6. CSS Validator: W3C provides a CSS Validation Service that can be used to check CSS files for syntax errors and other issues. This tool can also be used to analyze minified CSS files.


What is the difference between CSS compression and minification?

CSS compression and minification are both techniques used to reduce the file size of CSS code in order to improve website performance. However, there are some differences between the two:

  1. CSS compression: This involves removing unnecessary white spaces, comments, and other characters from the CSS code. It focuses on reducing the overall size of the file by eliminating any extra space that is not essential for the functioning of the code. Compression may also involve techniques such as gzip compression to further reduce the file size.
  2. Minification: Minification is a more aggressive technique that involves not only removing white spaces and comments, but also shortening variable names, reducing the length of color codes, and eliminating any redundant code. This results in a smaller file size compared to compression, but it can make the code harder to read and maintain for developers.


In summary, compression focuses on reducing the file size by removing unnecessary characters, while minification goes a step further by also optimizing the code structure for maximum efficiency. The choice between compression and minification depends on the specific requirements of the website and the level of optimization desired.


How to revert CSS minification in Laravel Mix?

To revert CSS minification in Laravel Mix, you need to modify the webpack.mix.js file in your Laravel project.


First, find the line in the webpack.mix.js file where the CSS file is being minified. It may look something like this:

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mix.sass('resources/sass/app.scss', 'public/css').minify('public/css/app.css');


To revert the minification, simply remove the .minify() method call from the line. It should look like this:

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mix.sass('resources/sass/app.scss', 'public/css');


After making this change, save the webpack.mix.js file and run the following command in your terminal to recompile the assets:

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npm run dev


This will regenerate the CSS file without minification. You can now see the CSS file without minification in your public directory.

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