Read about Web Development

Explore free online courses in HTML, CSS, JavaScript, React, PHP and more. Build in-demand coding skills and earn certificates at no cost, all online.

Ever wondered what happens when you type a web address? Learn how domains, hosting, and servers work together to load a website.

Learn what responsive web design is, why it matters, and the core techniques—fluid grids, flexible images, and media queries—to get started.

Learn how HTML, CSS, and JavaScript work together to build every website, and why they are the foundation of web development.

Learn what web accessibility means, why it matters, and practical steps to build websites that everyone can use, including people with disabilities.

A practical guide to mobile app deployment, release engineering, CI/CD, signing, versioning, testing tracks, and staged rollouts.

Learn how to implement basic service workers to cache resources, enable offline access, and improve the performance of your web projects.

Learn how Service Workers improve offline web experiences, optimize performance, and enhance user engagement in modern web applications.

Discover how Service Workers boost web performance, enhance security, and enable offline features for faster, more reliable web applications.

Learn PHP basics and build your first dynamic website with server-side scripting, form handling, and database integration for beginners.

Learn essential PHP security tips to protect your web applications from SQL injection, XSS, CSRF, and other vulnerabilities for safe web development.