Framer

framer.com

Framer is a tool to design interactive high-fidelity prototypes for iOS, Android, desktop, or the web. It enables users to turn static mockups into interactive prototypes and to experiment quickly with dynamic, native-feeling animations and interactions. Framer integrates with design tools, exports smoothly to mobile devices, and is powered by the language of the modern web, Javascript. The company was founded by Jorn Dijk and Koen Bok.