Is it possible to learn free programming?

Yes,

You can learn programming without spending a penny. I explain this to you. If you want to learn the program, your determination and dedication is enough.

YouTube: YouTube is the best learning platform. If there is continuity for your passion. Everything is free on YouTube. All you have to do is follow the right channels and mentors.

MIT Open Courseware:

If you have completed the beginner level, go with this platform. Where you will learn the ins and outs of coding - you can take advantage of MIT's free courseware site.

Web Fundamentals: 

This is a free Google project. This site is loaded with courses. It is an open source platform for developers to learn HTML5 code. Because this site takes you to the beginner level.

GitHub: 

GitHub is the best platform for learning programs on this platform, hosting and reviewing more than 31 million developer code.

Stack Overflow:

This is a quiz platform like Kura where you can ask programming related questions.

If you really want to learn the code on the platform then this is enough for you.