Lottie is an iOS library that renders vector animations exported from After Effects directly in your app without requiring manual frame-by-frame coding. Developers use it to add complex, high-quality animations to iOS apps by simply loading animation files, avoiding the need to recreate animations programmatically or maintain dozens of static assets. It supports both Objective-C and Swift, making it useful for custom transitions, UI animations, and other motion-heavy features.

42 open issues · last updated Jul 21, 2026