Unlock the Future of Learning: Discover the 17 Online Course Platforms Set to Dominate 2025
If you’re a student, the cost of courses can range from as little as $15 for basic courses to $25,000+ for complete, university-recognized degrees.
#17 – Treehouse
Treehouse is an online course marketplace where users can learn to code online. It offers hundreds of courses, most of which are focused on technical skills like programming, design, development, and data analysis.

Treehouse isn’t as well known as other eLearning marketplaces like Udemy or Skillshare, but it’s growing quickly. And it has an admirable mission: to diversify the tech industry and make it more accessible through affordable online education.