Lottie
Lottie is an open-source library for iOS, Android, and Web that renders Adobe After Effects animations in real-time using JSON files. It allows developers to easily integrate high-quality, vector-based animations into mobile and web applications without writing complex custom code. The animations are scalable, lightweight, and maintain smooth performance across different devices and screen resolutions.
Developers should use Lottie when they need to add rich, interactive animations to apps or websites, such as loading indicators, onboarding sequences, or UI feedback elements, as it simplifies animation workflows and reduces development time. It's particularly valuable for projects requiring consistent branding or engaging user experiences, as it enables designers to create animations in After Effects that developers can implement with minimal effort.