OneCSS: Unify & Optimize CSS Across Your PrestaShop Frontend

Simplify. Accelerate. Optimize. PrestaShop’s built-in CCC (Combine, Compress, Cache) system often generates separate CSS files for different page types—undermining caching efficiency and causing unnecessary reloads of the same styles. That’s where OneCSS comes in. This powerful module merges all your theme and module CSS into a single, unified CSS file, dramatically reducing HTTP requests, improving cache behavior, and delivering faster load times across your entire shop. Whether you're aiming to optimize mobile speed, reduce render-blocking resources, or boost Core Web Vitals, OneCSS is a lightweight, high-impact solution for every PrestaShop store. Key Features: 🧩 Combine All CSS Files into One across all front-end pages ⚡ Reduce Load Time & Boost PageSpeed Scores 🔁 Consistent CSS Delivery – homepage, category, product, and CMS pages all load the same optimized CSS 📦 Enhanced Cacheability – your browser caches once, reuses everywhere 🔍 Easy Compatibility Check (see bel