Massive list of free certificates and badges for developers in data science, software development, and more.

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

“We’re all puppets. I’m just a puppet who can see the strings.” – Dr. Manhattan, Watchmen Alan Moore is a legend. I’ve always been a big fan of his work adapted to movies: Watchmen (even bought the illustrated hard-cover comic series book after watching the movie) and V for Vendetta, being the most prominent. When I found out about this course on BBC Maestro, I didn’t hesitate to start watching it. Through this course, Moore helps us see the ‘strings’ of storytelling – the underlying mechanism

In January each year, Class Central publishes a list of the most popular online courses released by major course providers in the previous 12 months. The most popular course in the latest list turned out to be Google AI Essentials, launched by Coursera in April, 2024. More than 900,000 learners have enrolled, more than the combined total of all new courses launched on edX, FutureLearn, and Swayam in the same year. What’s even more surprising is that (unlike the vast majority of Coursera course

The first time you see Tailwind CSS, you might wonder whether someone accidentally pasted their stylesheet into the HTML. A single button can have a dozen classes just to control its spacing, colors, rounded corners, and hover effects. Are we really supposed to write all that? Each class does a small, specific job. Once you recognize them, you can style an element right where you’re building it, without jumping between files or thinking up another class name. The HTML gets busier, but making c

Looking for the best course to learn data structures and algorithms? I’ve compiled the best DSA courses to become a better coder or prepare for interviews.