Anime is a flexible yet lightweight JavaScript animation library. It works with CSS, Individual Transforms, SVG, DOM attributes and JS Objects.

http://anime-js.com/

Clipboard.js - A modern approach to copy text to clipboard No Flash. No dependencies. Just 2kb

https://clipboardjs.com/

Neonto Studio - Design tool that understands native mobile user interfaces. With Sketch integration.

https://www.neonto.com/

Vivus.js - A lightweight JavaScript class (with no dependencies) that allows you to animate SVGs, giving them the appearence of being drawn.

https://maxwellito.github.io/vivus/