File Optimizer is a Shopify app that enables you to easily minify theme files with the click of a button.

Key features:

  • Easily minify CSS, JavaScript, and Liquid files
  • No coding or working in theme editor required
  • Creates backup files that can be reverted with the click of a button

πŸ‘‰ Get File Optimizer at the Shopify app store.


Install File Optimizer for free. On the app home screen you’ll select your theme, then it will show you what files can be optimized + the estimated savings.

You can minify 1 file for free to test it out. If you think “hey this is cool”, you can upgrade to the paid version (a 1 time fee to use the app forever) and continue minifying the rest of your files.

Most likely one of your files had a coding syntax error. If this happens, revert the minification (click the Revert button), then contact us and we’ll investigate your theme to see what’s the problem.

File minification is a performance optimization technique to make files smaller.

Writing code is like writing an article – there are sections, different components, and different languages.

We humans πŸ‘¨β€πŸ’» write code that is readable to ourselves and other humans, but machines πŸ€– don’t need that structure so to save space you can minify a file by removing all the spaces and extra characters, shorten variables (words), and rearrange the code to contain the least amount of characters necessary.

All of that compression and optimization of the code for machines can make the weight of the file significantly smaller, making it load faster.

Yes we are the creators of the Shopify Analyzer, the first performance analysis tool specifically for Shopify sites.

We also offer a range of Shopify optimization services, and even created a free guide on how to optimize yourself if you enjoy the process and have technical abilities: Shopify Optimization Guide.

With File Optimizer, we’ve automated a process that does not require a human, but most optimization requires a human to analyze and adjust code. If you want a free analysis of how to further optimize your site, contact us here.

If you have any questions or feature requests contact us.