JavaScript library to help creating high quality justified galleries of images.

Official Website: http://miromannino.github.io/Justified-Gallery/

Impact

Widely used by many websites and derived libraries, with 400,000+ npm downloads

• For years it was used by 500px

• Wordpress plugin “Flickr Justified Gallery” (formerly Flickr Photostream) with 200,000+ downloads. These plugins for Wordpress are now archived and not maintained.

Key Features

• Responsive: Automatically adjusts to different screen sizes
• Performance optimized: Lazy loading support, efficient DOM manipulation, smooth animations
• Highly customizable: Configure row heights, margins, captions, and more
• Progressive enhancement: Gracefully degrades when JavaScript is disabled

Technical Highlights

Handles complex calculations for aspect ratio preservation, optimal row filling algorithms, dynamic resizing, and browser compatibility.