A JavaScript library for animating elements as they enter or leave the viewport on scroll.
ScrollReveal is a JavaScript library that animates HTML elements as they scroll into or out of the viewport. It solves the problem of adding engaging, performance-optimized scroll-triggered animations to websites with minimal code. Developers use it to enhance user experience by revealing content dynamically during scrolling.
Frontend developers and web designers who want to add scroll-based animations to websites without heavy frameworks or complex implementations.
Developers choose ScrollReveal for its lightweight footprint, simple API, and reliance on CSS for smooth animations. It offers an easy way to create visually appealing scroll effects without compromising performance.
Animate elements as they scroll into view.
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The `reveal()` method allows animating elements with just one line of JavaScript, making it quick to implement for basic scroll effects.
Leverages CSS transitions and transforms for hardware-accelerated animations, reducing jank and ensuring smooth scrolling experiences.
At only 5.7 kB minified and gzipped, it has minimal impact on page load times, as highlighted in the README badges.
Uses a singleton pattern to ensure a single instance manages all animations, preventing conflicts and simplifying state handling.
For commercial projects, a paid license is required to keep source code private, adding cost and complexity compared to MIT-licensed alternatives like AOS.
Animations rely entirely on JavaScript; if JS is disabled or fails to load, elements won't animate, potentially breaking user experience on noscript browsers.
Focused on basic scroll reveals; lacks built-in support for advanced features like complex animation sequences or interactive triggers beyond scrolling.