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

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

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

This online course teaches intermediate techniques to transform table data in SQL.

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

This online course gives an introduction to Kotlin, a popular programming language for Android development, web development, and more.

This online course teaches how to manage data with SQL, including mastering complex commands to manipulate and query data stored in relational databases. It includes topics such...

Khan Academy provides various free introductory video lessons on electrical engineering. Topics include circuit analysis, amplifiers, semiconductors, electrostatics, signals and...

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

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

Khan Academy provides various free introductory microeconomics video lessons. Topics include supply, demand, market equilibrium, scarcity, preferences, consumers and producers,...

This online course gives an introduction to jQuery (a JavaScript library).

This course teaches how to style websites with CSS.

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

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

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

This course teaches how to program in PHP, which is one of the most popular languages of modern web development.

This online course introduces learners to the basics of Lua, a general-purpose programming language used for building games, web apps, and developer tools.

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