They’re offered by many platforms including Google, Meta, and X, and cover SEO, social media marketing, and more.

In 2025, Harvard CS50 offers 10 free certificate courses on topics such as computer science, Python, and AI.

Swayam is India’s national online course platform, designed to support the country’s National Education Policy, which entails improving access to quality education in India. At Class Central, we’ve been paying attention to Swayam since the very beginning. It launched in beta in 2016, and has now reached over 56 million enrollments with over 5.2 million certificates issued. It’s been growing rather fast. Swayam offers courses in a wide variety of disciplines, including from prestigious institut

Looking to decode the mysteries of low-level programming? Then, you’ve landed in the right place!