Lazy Loading Code Generator

About Lazy Loading

Lazy loading delays loading of resources until they're needed, improving initial page load time and reducing bandwidth usage. It's especially important for images and iframes below the fold.

Browser Support

• • Native lazy loading (loading="lazy"): Chrome 77+, Firefox 75+, Safari 16.4+
• • Intersection Observer: All modern browsers
• • React.lazy & Suspense: React 16.6+
• • Use polyfills for older browsers if needed

Best Practices

• • Always provide width and height attributes to prevent layout shift
• • Use appropriate placeholder images or blur effects
• • Set rootMargin to load images slightly before they enter viewport
• • Don't lazy load above-the-fold content
• • Consider using loading="eager" for critical images