Coursera

Udemy

Udemy is an online learning platform that offers courses and training programs in a wide range of subjects. With over 290,000 courses available, users can learn new skills, enhance their careers, and explore their interests. Udemy's courses are taught by expert instructors and include video lessons, quizzes, and assignments.

DataCamp

DataCamp is an online learning platform focused on data science, analytics and AI, combining short instructional videos with interactive, in-browser coding exercises across Python, R, SQL and related tools. Learners can follow structured Career Tracks (36-44 hours) and Skill Tracks (9-28 hours) or take individual courses, building toward industry-recognized certifications along the way. The platform pairs its course library with AI-powered tutoring support, real-world portfolio projects and a mobile app for practicing on the go, and serves both individual career switchers and organizations building internal data literacy through team and enterprise plans. DataCamp Classrooms offers free access for verified students and educators.

Codecademy

Codecademy is an interactive online platform that offers free and paid coding classes in popular programming languages like Python, JavaScript, and HTML/CSS. It is designed to help learners build practical technical skills through browser-based coding environments and instant feedback. The platform caters to both absolute beginners taking their first steps in programming and professionals looking to advance their careers. With structured career paths, portfolio projects, and skill paths, Codecademy provides a comprehensive roadmap from foundational concepts to job-ready portfolios.

Khan Academy

Khan Academy is a non-profit educational organization that provides free, world-class education for anyone, anywhere. The platform offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. Designed to tackle subjects ranging from basic math to advanced physics, history, and test preparation like the SAT, Khan Academy collaborates with institutions like NASA and MIT to provide specialized content. Its adaptive technology identifies learning gaps and helps students master foundational concepts before moving on to more complex material.