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Minifying HTML, CSS, JavaScript and Images

posted Sep 12, 2014, 1:07 PM by Chris G   [ updated Mar 22, 2017, 2:22 AM ]
Minification can make a big difference in the performance of your site, the user experience, but it cal also have a very big impact on your site's ranking.

Here are a few useful tools.

Awesome online tool, with great drag and drop interface, works on HTML, CSS and JS:

Minify your JavaScript

This is a free online tool:

This website also offers some additional online services, such as "Crush your PNGs", and "Optimise your JPGs".

HTML Compressor


CSS Critical Path Generator


Google Guetzli image compressor

Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg. Guetzli generates only sequential (nonprogressive) JPEGs due to faster decompression speeds they offer.


Radical Image Optimization Tool (RIOT for short) 
This is a free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize. However, this is a Windows only application, available as a portable executable.