JavaScript Mastery

JavaScript Mastery was started in 2019 by Adrian Hajdin, a software engineer and educator based in Croatia. It has grown into one of the largest channels on YouTube for learning modern web development.

The videos are long, project based tutorials. Rather than explaining one idea at a time, each one builds a complete website or app from start to finish, then deploys it online. Topics include React, Next.js, 3D graphics on the web and, more recently, software design and building with AI coding tools. The channel also promotes its own paid courses. Code is shared alongside the videos, so viewers can follow along and compare their own work.

Some highlights include:

A one hour course that teaches the basics of React by building a working app.

A tutorial building a 3D developer portfolio website using React and the Three.js graphics library.

A full course on Next.js, building and deploying a complete web application.

The channel has over 1.2 million subscribers.

Web development is one of the quickest ways to see your code turn into something other people can use. This channel connects to software engineering and full stack development careers, and shows the tools many companies use today. The projects are long, so it suits students who already know some programming basics and want a bigger challenge.