Khan Academy

Khan Academy is a non-profit educational organization providing free online courses, lessons, and practice exercises. It covers a wide range of subjects, primarily focusing on math, science, and test preparation. The platform is designed to offer personalized learning experiences, allowing users to progress at their own pace. Khan Academy is widely used by students of all ages, teachers, and homeschoolers seeking supplementary educational resources. Its mission is to provide a free, world-class education for anyone, anywhere.

Coursera is an online learning platform offering courses, Specializations, and degrees from top universities and institutions worldwide. While many courses are paid, Coursera offers some free content. It provides a more structured learning environment compared to Khan Academy, with defined start and end dates, assignments, and assessments. Coursera is suitable for learners seeking in-depth knowledge and professional development opportunities. It offers a wider variety of subjects, including business, technology, and humanities. Many courses are degree-granting.

edX is another online learning platform similar to Coursera, offering courses from top universities and institutions. It provides a mix of free and paid courses, with a focus on academic subjects and professional development. edX emphasizes interactive learning experiences, including video lectures, discussion forums, and online labs. It's a good option for learners seeking rigorous academic content and opportunities for professional advancement. The platform partners with many top-tier global universities.

Udemy is a vast online marketplace offering courses on a wide range of topics, from programming and business to personal development and hobbies. Unlike Khan Academy, most courses on Udemy are paid, but they are often available at discounted prices. Udemy provides a platform for instructors to create and sell their courses, resulting in a diverse selection of content. It's suitable for learners seeking specific skills or knowledge in niche areas. User reviews are helpful in assessing course quality.

Skillshare focuses on creative skills and offers courses in areas such as design, photography, writing, and illustration. It operates on a subscription-based model, providing access to all courses for a monthly or annual fee. Skillshare emphasizes hands-on projects and community engagement. It's a good option for learners seeking to develop creative skills and connect with other creatives. The platform is less focused on academic subjects compared to Khan Academy.

YouTube Learning is an extension of the popular video-sharing platform, offering a vast library of educational content. While not specifically designed for structured learning like Khan Academy, YouTube provides access to countless tutorials, lectures, and educational videos on virtually any topic. It's a great resource for supplementing learning and finding explanations on specific subjects. However, the quality and reliability of content can vary significantly.