GSAP
GSAP (GreenSock Animation Platform) is a high-performance JavaScript animation library used to create smooth, complex animations for web interfaces. It provides a robust API for animating CSS properties, SVG, canvas, and other web elements with precise control over timing, sequencing, and easing. It is widely used for building interactive websites, games, and data visualizations.
Developers should learn GSAP when they need to create advanced, performant animations that go beyond basic CSS transitions, such as complex sequences, scroll-based animations, or interactive UI effects. It is particularly useful for projects requiring cross-browser compatibility, smooth 60fps animations, and fine-grained control over animation timelines and callbacks, making it ideal for marketing sites, portfolios, and web applications with rich user experiences.