Fabric.js is a powerful JavaScript library designed to make working with the HTML5 canvas much simpler and more intuitive. The HTML5 canvas API allows you to draw graphics, shapes, and images directly on a web page, but it requires a lot of manual coding to create, manage, and interact with these graphics. Fabric.js extends the native canvas API by providing a higher-level, object-oriented approach to drawing and manipulating graphics. This means you can create, move, resize, and interact with shapes and images much more easily, using straightforward JavaScript code. With Fabric.js, you can treat graphics as objects that can be selected, modified, and grouped, enabling you to build interactive and dynamic visual applications without dealing with low-level canvas operations.