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Khan Academy provides various free introductory computer science video lessons. Topics include algorithms, cryptography, information theory, computer hardware and software,...

This online course gives an introduction to the C programming language. C is one of the foundational languages of computer science, for example used in operating systems. The...

Free Dutch language app with many short tests to learn "on the go". (Not a video course.)

Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

This online course teaches how to build powerful interactive applications with this popular JavaScript library. React is an open source library developed by Facebook.

Khan Academy provides various free introductory video lessons on health and medicine. Topics include human anatomy and physiology, circulatory system diseases, mental health,...

These online lessons explain the basics of neuroanatomy. In addition to the free video lessons, further (paid) trainings are available.

This online course teaches how to create websites by structuring the pages with HTML.The course is designed for beginners and includes HTML elements and structures as well as...

Khan Academy provides various free introductory programming video lessons. Topics include JavaScript, HTML and CSS, SQL, and more.

Free Norwegian language app with many short tests to learn "on the go". (Not a video course.)

Free Turkish language app with many short tests to learn "on the go". (Not a video course.)

Khan Academy provides various free introductory macroeconomics video lessons. Topics include national income and the GDP, inflation, demand and supply, business cycles, the...

Khan Academy provides various free lessons for learners who prepare for the SAT test.

This course teaches how to style websites with CSS.

Khan Academy provides various free introductory physics video lessons. Topics include velocity and acceleration, forces and Newton's laws of motion, gravitation, energy,...

This collection of YouTube playlists provides an introduction to car technology for beginners. It includes several video lists on topics such as car engines, engine components,...

Free German language app with many short tests to learn "on the go". (Not a video course.)

This online course introduces learners to the Flutter framework with interactive lessons on basic app components.

This course shows the basics of SQL data analysis to explore dips and spikes in data and build business metrics.

This online course gives a free introduction to digital currencies such as Bitcoin. It is also the first course of an online master's program in digital currencies from the...