Large or unoptimized JS and CSS files can slow your Squarespace site, delay page rendering, and impact SEO performance. Our Squarespace JS & CSS optimizer simplifies your code, improves efficiency, and keeps your website running smoothly.
Optimize all your JS and CSS files at once, no manual editing required.
Remove extra spaces, comments, and redundant code to make your scripts and styles lighter.
Choose specific JavaScript or CSS files for precise control when needed.
Your code stays fully private; nothing is shared or exposed.
Bulky or unoptimized JavaScript and CSS can slow down your Squarespace site, frustrate visitors, and impact your search engine rankings. Our Squarespace JS & CSS minifier trims unnecessary spaces, comments, and redundant code, keeping your scripts and stylesheets lean — all without affecting your site’s look or functionality.
Faster, More Responsive Site - Large JS and CSS files can delay page interactions. Minifying your code ensures smooth browsing and keeps users engaged.
Better Mobile Experience - Optimized scripts and styles load efficiently on all devices, making navigation seamless on smartphones and tablets.
Enhanced SEO - Cleaner, lighter code improves page load times and helps your site rank higher in search results.
Improved Core Web Vitals - Metrics like First Input Delay (FID) and Largest Contentful Paint (LCP) benefit from optimized JS and CSS, boosting your site’s overall performance.
With our Squarespace JS & CSS Minifier, you don’t have to compromise between functionality and speed. Minify CSS and JavaScript for Squarespace to enjoy a faster, more optimized website that ranks higher in search results and delivers a smoother, more satisfying browsing experience
Sign up for an Image Optimizer Pro account to get started.
Easily integrate using API Key and Site ID for a secure connection.
Click “Upload Files to Optimize” to add your file.
Download your minified JavaScript or CSS files instantly.
Use our Squarespace CSS minifier and Squarespace JS minifier to remove extra spaces, comments, and redundant code. Minify JavaScript for Squarespace 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 Squarespace CSS optimization tool and Squarespace JS optimization app let you minify files instantly, no coding required.
Shrink CSS and JS files using our Squarespace JavaScript compressor and CSS compressor. Smaller file sizes mean faster loading pages and better user engagement.
Our Squarespace 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 Squarespace App Store and start using the Squarespace 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 Squarespace JS & CSS optimizer preserves your site’s scripts, layouts, and styles. You can choose lossless optimization to ensure everything remains intact.
Yes. This tool lets you minify all theme and asset files at once, saving time and effort.
Absolutely. Our Squarespace JS & CSS optimization tool works with any Squarespace site without requiring coding knowledge.
Minifying JavaScript and CSS reduces file sizes, lowers page weight, and contributes to a smoother user experience.
Depending on your code, you can reduce JS and CSS files by up to 30% while keeping functionality and styling intact.
We support .js and .css files, including custom scripts, theme files, and third-party integrations.
Yes. Minified JS and CSS can help pages load more efficiently, which positively impacts search engine rankings.
No. The tool carefully processes your code so that third-party scripts continue working flawlessly.
All files remain securely within your Squarespace 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 minified JS and CSS perform on your site before applying changes across all pages.
Our support team is ready to assist with installation, configuration, or any questions to make Squarespace JavaScript & CSS optimization simple and effective.
