Intersection Observer
What is Intersection Observer?
Intersection Observer belongs to JavaScript libraries and Performance categories.
Intersection Observer is a browser API that efficiently detects when an element enters or leaves the viewport, useful for implementing lazy loading and infinite scrolling.
Top Intersection Observer Alternatives
Lozad.js
10 websites|10 uptime cardsLozad.js is a lightweight JavaScript library for efficient lazy loading of images and other media, improving page load times.
LazySizes
195 websites|191 uptime cardsLazySizes is a lightweight, feature-rich JavaScript library used for lazy loading images, iframes, scripts, and other resources. It intelligently loads content only when it's about to enter the viewport, significantly improving page load times and reducing bandwidth usage. LazySizes is highly configurable and works without any dependencies, making it an excellent choice for optimizing web performance.
InstantClick
2 websites|0 uptime cardsInstantClick is a JavaScript library that preloads pages on hover, making website navigation feel instantaneous.
Instant.Page
4 websites|4 uptime cardsInstant.Page is a lightweight JavaScript library that uses just-in-time preloading to make website navigation faster.
LazySizes unveilhooks plugin
4 websites|4 uptime cardsLazySizes unveilhooks is a plugin extending the LazySizes library to enable lazy loading for scripts, widgets, background images, and media elements.