Heavy or unoptimized JavaScript and CSS can slow down your Wix site, block page rendering, and impact SEO. Our Wix JS & CSS optimization tool keeps your code clean, efficient, and easy to manage, so your website runs smoothly.
Minify multiple CSS and JS files in seconds without touching your code.
Instantly Reduce CSS and JS file size by up to 30% by eliminating all unnecessary code and whitespace.
Minify your CSS and JS files whenever you choose, giving you full control.
Your code remains private and protected, nothing is shared externally.
Large, unoptimized JavaScript and CSS files can make your Wix site slow, frustrate visitors, and limit search visibility. Our Wix JS & CSS Minifier slims down your scripts and stylesheets, removing unnecessary spaces, comments, and formatting — all without affecting your site’s design or functionality.
Better User Engagement – Heavy scripts can delay interactions and frustrate visitors. By using our Wix JS and CSS optimizer, your pages stay responsive, keeping customers engaged.
Mobile-Friendly Browsing – With most web traffic coming from mobile devices, optimizing JS and CSS ensures your site is easy to navigate and visually consistent on every screen size.
Stronger SEO Performance – Google favors efficient, clean code. Minifying your CSS and JavaScript helps reduce file size, speed up page rendering, and improve search rankings.
Improved Core Web Vitals - Metrics like First Input Delay (FID) and Largest Contentful Paint (LCP) depend on well-optimized code.
With our Wix JS & CSS Minifier, you don’t have to compromise between functionality and speed. Minify CSS and JavaScript for Wix to enjoy a faster, more optimized site that ranks higher and delivers a smoother, more engaging browsing experience.
Get it from the Wix App Store.
Click “Upload Files to Optimize” to add your file.
Download your minified JavaScript or CSS files instantly.
Use our Wix CSS minifier and Wix JS minifier to remove extra spaces, comments, and redundant code. Minify JavaScript for Wix and CSS files safely without changing how your store looks or works.
Quickly reduce CSS file size and compress JavaScript with just one upload. The Wix CSS optimization tool and Wix JS optimization app let you minify files instantly, no coding required.
Shrink CSS and JS files using our Wix JavaScript compressor and CSS compressor. Smaller file sizes mean faster loading pages and better user engagement.
Our Wix CSS optimizer and JS optimizer ensure your minified files work exactly as intended—without breaking site design, layouts, or store functionality.
Install directly from the Wix App Store and start using the Wix CSS and JS optimization tool right away. No developer skills or setup hassles.
By reducing CSS and JS file sizes, your store improves Core Web Vitals like Largest Contentful Paint (LCP). Faster pages boost your SEO rankings and deliver a smoother shopping experience.
Choose your website platform
Reduction in File Size
Faster Page Loads
Point Increase in Google PageSpeed Score
Effortless Image Optimization for Wix Stores. Very helpful for automatically optimizing our Wix images
Easy Optimization That Actually Work. We were looking for a way to optimize the product images on our site and got introduced to Image Optimizer Pro. It was easy to install and sweep through the images. We ran a before-and-after speed performance test and just this one simple exercise netted us a 5% jump in our performance score. Thank you!
Love this app! It can't get any easier than this. I was quite impressed. I only wish they had a way to compress images other than just products. Though based on the discussion with the support team, they are working on expanding to other options. This app is well worth the time to install.
I really love it! I’ve been using this app for a while now, and I am truly impressed with its performance. It effortlessly reduces the size of my images without compromising quality. Very helpful in improving loading speed of my website.
Very helpful for automatically optimizing our Wix images. Fairly priced, super easy to use, intuitive and quick. Highly recommended!
Easy to Use and Works! The Image Optimizer Pro app is easy to use and works as expected. The free trial gives 100 image compressions and is more than a fair trial of the software. Highly recommend you give it a go!
No. Our Wix JS and CSS optimizer preserve your site’s scripts and layouts. You can choose lossless optimization to ensure everything stays intact.
Yes. This tool lets you minify all theme and asset files in one go, saving time and effort.
Absolutely. Our Wix JS & CSS optimization tool works with any Wix site without requiring coding knowledge.
Minified JavaScript and CSS reduce page weight, improve load performance, and contribute to a smoother user experience.
Depending on your code, you can reduce JS and CSS file sizes by up to 30%, keeping your site light and efficient.
We support .js and .css files, including custom theme and third-party script files.
Yes. Minified JS and CSS help pages load faster, which positively impacts search engine rankings.
No. Our tool carefully processes your code so third-party scripts continue working flawlessly.
All files remain securely within your Wix site. We do not access, share, or sell your data.
Yes. Your originals are safely backed up, so you can revert at any time.
Yes. Preview how your minified JS and CSS perform before applying changes site-wide to ensure everything works perfectly.
Our support team is ready to assist with installation, configuration, or any questions to make Wix JS & CSS optimization simple and effective.
