Heavy or unoptimized JavaScript and CSS can make your BigCommerce store load slowly, block page rendering, and affect SEO. Our BigCommerce JS & CSS optimization tool keeps your code streamlined, efficient, and easy to manage:
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.
Yes, large, unoptimized CSS and JavaScript files can frustrate shoppers, and limit your store’s search visibility. With the BigCommerce JS & CSS Minifier, you can slim down file sizes, streamline code, and deliver a smoother shopping experience.
This BigCommerce JS and CSS optimization tool cleans up your store’s scripts and stylesheets. It removes excess spaces, comments, and formatting that add bulk — all without affecting your store’s design or functionality.
Boost Conversions: Even a slight delay in responsiveness can cause shoppers to leave. By using BigCommerce JS & CSS optimizer, you keep pages responsive and customers engaged.
Mobile-Friendly Browsing: Most eCommerce traffic now comes from mobile. Heavy scripts and styles slow these users down, but using this tool makes pages lighter and easier to navigate on any device.
Stronger SEO Performance: Google favors faster websites. Minifying CSS and JS helps reduce file size, speed up rendering, and improve search rankings.
Improved Core Web Vitals: Performance metrics like First Input Delay (FID) and Largest Contentful Paint (LCP) depend on efficient code. Minify CSS & Javascript for BigCommerce ensures leaner files that directly support better scores.
With our BigCommerce JS & CSS Minifier, you never have to choose between speed and functionality. Minify your CSS and JavaScript to create a faster, better-optimized store that ranks higher and delivers a smoother shopping experience.
Get it from the BigCommerce App Store.
Click “Upload Files to Optimize” to add your file.
Download your minified JavaScript or CSS files instantly.
Use our BigCommerce JS and CSS minifier to strip out unnecessary spaces, comments, and redundant code. Minify JavaScript and CSS for BigCommerce safely without changing how your store looks or functions.
No coding needed. With our BigCommerce JS and CSS optimization tool, you can reduce file size instantly with a single click.
Shrink your CSS and JS files using the built-in BigCommerce JavaScript compressor and CSS compressor. Lighter files make your storefront smoother and easier for customers to navigate.
Every minified file is optimized to keep your design, layout, and store features intact. Our BigCommerce CSS optimizer and JS optimizer are built to preserve performance without breaking anything.
The BigCommerce CSS and JS optimization tool connect seamlessly with your store. You can start optimizing right away without developer setup.
By reducing CSS and JS file size, your store benefits from cleaner code and improved Core Web Vitals. Faster, more efficient pages help boost SEO and keep visitors engaged.
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. The BigCommerce JS & CSS minifier preserves your code’s functionality and layout. You can choose lossless optimization to ensure everything stays intact.
Yes. Our BigCommerce JS optimizer and CSS optimizer can minify all theme and asset files in one go, saving hours of manual work.
Absolutely. The BigCommerce JS & CSS optimization tool works with every theme and requires no coding knowledge.
Minified JavaScript and CSS reduce page weight, improve loading performance, enhance SEO, and ensure a smoother experience for your customers.
Depending on the complexity of your code, you can reduce JS and CSS file sizes by up to 30%, which improves overall store performance.
We support .js and .css files, including custom theme scripts and third-party integrations.
Yes. Smaller, optimized JS and CSS files contribute to faster page loads, which positively affects search rankings.
No. Our tool carefully analyzes your JavaScript and CSS, so third-party scripts continue to work without interruption.
All files remain securely in your BigCommerce store. We don’t access, share, or sell your data.
Yes. Your originals are safely backed up, so you can revert at any time.
Yes. You can preview how minified JS and CSS will perform before applying changes site-wide, ensuring your store functions perfectly.
Our support team is ready to assist with installation, configuration, and any questions to make BigCommerce JS & CSS optimization smooth and easy.
