Alpine.js is a lightweight JavaScript library designed to make it easy for you to add interactivity to your HTML. Its main goal is to provide the reactive and declarative power of larger frameworks like Vue.js or React, but with a much smaller footprint and a syntax that feels familiar to anyone who knows HTML. Alpine.js is ideal when you want more than just static HTML but do not need the complexity or size of a full-featured framework.

You will typically use Alpine.js when you need to sprinkle interactivity onto your pages—such as toggling menus, showing and hiding elements, or handling simple user input—without restructuring your project or writing large amounts of JavaScript. Alpine.js fits into the JavaScript ecosystem as a tool for enhancing static or server-rendered pages, sitting somewhere between writing vanilla JavaScript and adopting a full single-page application framework.

If you are already comfortable with HTML and want a simple way to add dynamic behavior, Alpine.js provides a minimal syntax using special HTML attributes. This approach keeps your markup and logic together, making your code easier to read and maintain.