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9 Best Vanilla JavaScript Lazy Load Libraries

List hand-picked by Openbase Experts
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vl

vanilla-lazyload

LazyLoad is a lightweight, flexible script that speeds up your website by deferring the loading of your below-the-fold images, backgrounds, videos, iframes and scripts to when they will enter the viewport. Written in plain "vanilla" JavaScript, it leverages IntersectionObserver, supports responsive images and enables native lazy loading.

69.6K
6.9K
Built-in
MIT
laz

lazysizes

High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.

255K
16.2K
Built-in
MIT
ks

keen-slider

The HTML touch slider carousel with the most native feeling you will get.

99.3K
3.9K
Built-in
MIT
bla

blazy

Hey, be lazy! bLazy.JS is a lightweight pure JavaScript script for lazy loading and multi-serving images. It's working in all modern browsers including IE7+.

13.1K
2.6K
DefinitelyTyped
MIT
lap

loading-attribute-polyfill

Fast and lightweight dependency-free vanilla JavaScript polyfill for native lazy loading / the awesome loading='lazy'-attribute.

5.8K
580
No support
MIT
loz

lozad

🔥 Highly performant, light ~1kb and configurable lazy loader in pure JS with no dependencies for responsive images, iframes and more

36.4K
7K
DefinitelyTyped
MIT
alo

aload

Loads images, background images, scripts, styles, iframes, videos and audios asynchronously (just 241 bytes).

30
407
No support
MIT
tur

@marlospomin/turtle

A blazing fast & modern javascript plugin to lazy-load your images with no dependencies.

1
9
No support
MIT
hl

hqy-lazyload

A fast lightweight pure JavaScript script for lazy loading and multi-serving images, iframes, videos and more.

0
11
No support
MIT
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