Bootstrap is a versatile open-source toolkit for developing web pages for an application. It was developed by Twitter and hosted on GitHub, and its goal is to create interfaces and uniformly maintain them. It saves a lot of developers’ time by providing ready-made components. It requires a basic understanding of HTML and CSS, making it simple to use. It has features that make the application easily adaptable to smaller screens using responsive components. Bootstrap follows a mobile-first approach and is compatible with most web browsers like Firefox, Chrome, Safari, Edge, etc. It employs reusable components to provide a consistent design and supports Jquery plugins.