AngularJS - HTML enhanced for web apps!
AngularJS is a client-side web application framework that simplifies the development process by allowing the use of HTML as the template language. It offers features such as two-way data binding, dependency injection, and promises for asynchronous operations. While official support for AngularJS has ended as of January 2022, it remains a popular choice for web development.
Bootstrap is the most popular CSS Framework for developing responsive and mobile-first websites.
Grunt is a popular JavaScript task runner that automates repetitive tasks like minification, compilation, and testing, allowing developers to focus on writing code.
Gulp.js is an old but popular site building tool that automates various repetitive development tasks in web development, such as compiling Sass, minifying JavaScript, and optimizing images.