Lazy Loading Image Code Generator

Enter img tags to automatically generate lazy loading, picture tags, and srcset

Image Tag Input

Paste or type img tags. Multiple tags supported. (Ctrl+Enter to generate)

Conversion Options

Lazy loading with loading="lazy" attribute

Async decoding with decoding="async" attribute

Add fetchpriority="low" attribute

Wrap with picture tag for responsive images

Add WebP source inside picture tag

Generate srcset for various screen sizes

Lazy Loading Usage Guide

  • Page Speed Improvement: Load only visible images first to improve initial loading speed.
  • Bandwidth Saving: Save data by not loading images that users haven't scrolled to.
  • Core Web Vitals: Helps improve Google's core web metrics like LCP and CLS.
  • Responsive Support: Provide optimized images for various screen sizes with picture tag and srcset.
  • Browser Support: loading="lazy" is natively supported by most modern browsers.
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Lazy Loading Image Code Guide

Lazy Loading is a key technique for improving web page performance. It loads only visible images first and loads images sequentially as you scroll, significantly improving initial loading speed.

Effects of Lazy Loading

LCP Improvement

Reduce Largest Contentful Paint time to improve Core Web Vitals scores.

Bandwidth Saving

Reduce data usage by loading only necessary images.

Mobile Optimization

Provide optimal images per device with srcset.

SEO Improvement

Page speed improvements positively impact search rankings.

Basic Usage

Just adding the loading="lazy" attribute enables basic Lazy Loading. Using srcset and picture tags makes it even more effective.

Conversion Options Explained

Option Description Effect
loading="lazy" Browser native lazy loading Supported by all modern browsers
decoding="async" Async image decoding Prevents main thread blocking
fetchpriority Set loading priority Prioritize LCP image loading
srcset Provide images by screen size Responsive image optimization

Caution

Don't apply lazy loading to important images at the top of the page (Hero images, etc.). It can actually worsen LCP.

Related Keywords

Lazy Loading Image Optimization Core Web Vitals srcset Picture Tag Web Performance