1.ApoorvSaxena / lozad.js🔥 Highly performant, light ~1kb and configurable lazy loader in pure JS with no dependencies for responsive images, iframes and moreperformancejavascriptlazy-loadinglazyloadhtmlimages+1 moreJavaScriptMIT7.5K total435 forks+3 starsfrom 7,485 · score 1.39