Coursera provides React.js and other technology specialisation and professional certification courses.

Front-End Web Development With React is a good tutorial to start learning React. This tutorial will teach you about its component, JSX, as well as advanced concepts such as one-page applications, flow architecture, Redux, and how to use the REST API.

6. Scrimba

The ultimate React 101 by Scrimba is another great platform to learn React for free in 2023. This is an interactive course for beginners to learn React.js from the start.

You will learn about the basics and advanced of React by solving interactive coding challenges and fun projects.

7. Coursesity

At Coursesity, you can discover the best online React.js programming tutorials and courses to learn web and app development for free.