To become a web developer, start by learning HTML, CSS, and JavaScript, the foundational languages of the web. Familiarize yourself with popular frameworks like React or Angular, and backend technologies like Node.js or Python. Practice by building projects and seek online tutorials. Study responsive design for mobile compatibility. Master version control systems like Git. Understand databases and how to interact with them using SQL or NoSQL. Stay updated with industry trends and best practices. Join developer communities, attend meetups, and participate in coding challenges.