Turn CSS bloat into
lightning-fast page loads
Achieve streamlined rendering performance with NitroPack’s complete CSS optimization. Generate Critical CSS, remove unused styles, combine files, and more—all automatically.
CSS powers your website’s design
Why is optimizing CSS important?
Bloated CSS files
Modern websites rely on large CSS files to style their pages, but unused or redundant CSS can significantly slow down rendering. Without optimization, these files increase load times and hurt Core Web Vitals.
Inefficient CSS loading
Websites fail to prioritize above-the-fold styles, delaying how quickly content appears on screen. Without Critical CSS, users experience slow rendering and poor perceived performance, causing high bounce rates.
Too many CSS requests
Multiple CSS files create excessive network requests, increasing load times. Combining CSS into fewer files reduces these requests, speeding up rendering and improving user experience.
How NitroPack speeds up your CSS
Clean up and streamline all your CSS files for optimized delivery and faster page rendering.
Generate Critical CSS
Automatically inline the CSS needed for above-the-fold content while asynchronously loading non-critical styles to speed up visual rendering.
Combine CSS Files
Merge multiple CSS files into fewer requests to minimize network latency and improve rendering efficiency.
Remove Unused CSS
Eliminate unused styles from your CSS files, reducing file size and improving page speed.
Custom CSS Rules
Define custom CSS rules that NitroPack will apply to your optimized pages for greater control over styling.
No more CSS warnings in your Google PSI report
Reduce unused CSS- Generate Critical CSS
- Eliminate Render-Blocking Resources
- Avoid Excessive DOM Size
- Preload Key Requests
- Reduce Initial Server Response Time
FAQs
What is Critical CSS, and why is it important?
Critical CSS refers to the CSS needed to render above-the-fold content as quickly as possible. NitroPack automatically generates and inlines Critical CSS, ensuring your page loads faster and improves user experience.
How does NitroPack remove unused CSS?
NitroPack scans your pages to identify and remove unused CSS, reducing file sizes and eliminating unnecessary styles that slow down your site.
Can NitroPack combine multiple CSS files?
Yes, NitroPack merges multiple CSS files into fewer requests, minimizing network latency and improving rendering speed.
Will NitroPack work with custom CSS?
Absolutely. NitroPack supports custom CSS rules, allowing you to maintain full control over your website’s styling while still optimizing performance.
Does NitroPack support third-party CSS frameworks?
Yes, NitroPack works seamlessly with popular frameworks like Bootstrap and Tailwind CSS, optimizing their styles alongside your custom CSS.
Can NitroPack fix layout shifts caused by CSS?
Yes, NitroPack’s optimizations reduce CLS (Cumulative Layout Shift) by removing unused CSS, ensuring efficient file delivery, and prioritizing styles critical for stability.