There are also many different tools that can help to make your development process more efficient. Here, we just mention some tools that might be useful for you. Gulp.js is an open source JavaScript toolkit to automate your tasks in the development process. Grunt is similar to the JavaScript task runner, which you can use to automate your process. Webpack is a JavaScript module bundler that creates static assets from your dependencies. create-react-app, which we used in previous chapters, actually uses Webpack under the hood.