Framer is a design and prototyping tool. You can build multi-screen flows or rich micro-interactions. You can use Framer to validate ideas, invent new interactions, and design how an app or website will look and feel. And since Framer is code-based, you can design for VR, hook up rich audio and video players, work with real data, and much more.
To see some examples of amazing things people have made with Framer, check out Dribbble.