50 Free Classes That Can Pay Off
Gaining skills doesn't have to cost money. Check out these 50 classes you can take free. · Credit.com

Skills pay the bills, at least according to a lot of early '90s hip hop.

But that doesn't mean you have to spend money to acquire those skills. Yes, college is getting more expensive, but there are plenty of free classes online that can beef up your resume or let you start a side hustle without racking up student loan debt.

Here are 50 free classes that can pay off.

1. GED Classes

Passing the GED high school equivalence test opens doors to college and many jobs. Test preparation classes are available online and at many local libraries. And, if you're thinking of getting a higher education, you can find some ways to pay for college without building a mountain of debt here.

2. Introduction to Computer Science

This course from MIT teaches students the Python programming language, a few simple algorithms and how to test and debug code. It's available through EdX free, though you can receive a certificate of completion for a fee. This could be a good start to getting a computer science degree, one of a few college degrees that really pays off.

3. HTML5 & CSS Fundamentals

Learn the basics of web design and style from a course designed by Intel and W3C and get an introduction to the HTML5 and CSS languages. Available on EdX.org.

4. Introduction to C++

C++ is another foundational programming language. Microsoft offers this course, which provides an entry into C++ basics, including how to create functions. Available on EdX.

5. Introduction to Java Programming

Continuing on the computer programming path, Java is another language used just about everywhere. This course, from the Hong Kong University of Science and Technology, not only teaches the basics of Java but also aims to improve students' problem solving skills. Available on EdX.

6. Academic & Business Writing

Make your writing more persuasive with this six-week class offered through the University of California at Berkeley, which also teaches proofreading and vocabulary. Those skills can come in handy when writing everything from a job cover letter to a credit dispute letter. Available on EdX.

7. Writing for Strategic Communication

Even if you're not a professional writer, this course could help you improve all your writing endeavors, even your tweets. From La Trobe University in Australia on iTunes.

8. Data Science Orientation

This is the first course in a full curriculum on data science from Microsoft. Big data is big business, and the skills to decipher it are in demand. This course will give you basics on exploring data using Microsoft Excel and give you an idea on whether data science is something you'll want to pursue as a career. Available on EdX.