Preact is an attempt to recreate the core value proposition of React (or similar libraries like Mithril) using as little code as possible, with first-class support for ES2015. Currently the library is around 3kb (minified & gzipped).
Preact is a tool in the UI Components category of a tech stack.
No cons listed yet.
What are some alternatives to Preact?
jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML.
Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technology stack, it's easy to try it out on a small feature in an existing project.
Whether you're building highly interactive web applications or you just need to add a date picker to a form control, jQuery UI is the perfect choice.
React Router is a complete routing solution designed specifically for React.js. It painlessly synchronizes the components of your application with the URL, with first-class support for nesting, transitions, and server side rendering.
Material UI is a library of React UI components that implements Google's Material Design.
unistore, Proppy, Moveable, JSFiddle, React and 7 more are some of the popular tools that integrate with Preact. Here's a list of all 12 tools that integrate with Preact.