Browserify is a tool that allows developers to use the latest JavaScript features and modules in their web applications. It enables the use of Node.js-style modules in the browser, making it easier to manage dependencies and organize code. By bundling all the required files into a single JavaScript file, Browserify helps improve load times and simplifies the development process. With Browserify, developers can write modular code and leverage a vast ecosystem of existing libraries. It transforms the code so that it can run in any browser, ensuring compatibility and reducing the need for multiple script tags in HTML. This streamlines the workflow and enhances code maintainability.