Web development is the process of creating and maintaining websites and web applications using technologies like HTML, CSS, JavaScript, PHP, Python, and frameworks (React, Angular, Node.js, Django), covering front-end (UI/UX), back-end (servers, databases), and full-stack development.

Key platforms include WordPress for CMS, Shopify for e-commerce (featuring Liquid templating and seamless payment integration), React.js/Angular for dynamic front-ends, and Node.js/Django for robust back-end systems, with databases like MySQL and MongoDB ensuring data management.

Whether building responsive sites, scalable apps, or online stores, web development combines coding, design, and functionality for optimal digital experiences.