Lottie allows engineers to build richer animations without the painstaking overhead of re-writing them. Nick Butcher’s jump through animation, Bartek Lipinski’s hamburger menu, and Miroslaw Stanek’s Twitter heart demonstrate just how difficult and time consuming it can be to re-create animations from scratch. With Lottie, digging through frameworks for reference, guessing durations, manually creating Bézier curves, and re-making animations with nothing more than a GIF for reference will be a thing of the past. Now engineers can use exactly what the designer intended, exactly how it was made. To demonstrate that, we’ve recreated their animations and provided After Effects and JSON files of each in our sample app.