BETA
Add libs to your collection by pressing add button
Sorting

All pages will be filtered by your selected preferences

JavascriptPerformance

Performance

Use these Javascript optimization tools to handle code and other files that use a lot of memory and slow down your websites and web apps.

vlverlok/vanilla-lazyloadLazyLoad 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.
7K
6
3 months ago
86K
17.8.3
ggooglechromelabs/comlinkComlink makes WebWorkers enjoyable.
9K
55
over 1 year ago
175.9K
v4.3.1
bbuilderio/partytownRelocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
9.6K
61
3 days ago
181.1K
v0.7.1
Don’t see a specific package?
Submit it here(it only takes a few seconds.)