airbnb/lottie-android

Lottie is a library originally created by Airbnb that allows mobile apps to display animations designed in Adobe After Effects, a professional motion graphics and video editing tool, without any manual conversion by a developer. The problem it solves is the traditional mismatch between designers and engineers: a designer creates a beautiful animation in After Effects, but translating it into native mobile code is a tedious, error-prone process that often results in a simplified version of the original. Lottie closes that gap entirely. The workflow is straightforward: a designer creates an animation in After Effects and exports it as a JSON file using a plugin called Bodymovin. The developer then includes that JSON file in the mobile app and uses the Lottie library to render it. The result is the full, pixel-perfect animation playing natively on the device, no video file, no GIF, just vector-based rendering that scales cleanly to any screen size. Lottie supports Android, iOS, React Native, Web, and Windows, each as a separate library. The Android version (this repository) is written in Java and integrates with Jetpack Compose via a companion lottie-compose package. Animations are loaded from the assets folder, a URL, or a raw JSON string. A mobile developer building an app that needs smooth, designer-created animations for onboarding screens, loading states, button feedback, or any other UI motion would use Lottie. The primary language is Java, it targets the Android platform, and it is added as a Gradle dependency.