Preact is a fast 3kB alternative to React with the same API
Preact is a fast 3kB alternative to React with the same API

preactjs.com
Preact

I started using Preact for a project at work and I'm really liking it. Aside from size and speed, it provides some really nice features not present in React. For example, I find signals are a really nice way to manage shared state between components.