Learn to code by writing code.

Short lessons, hands-on exercises, and instant feedback — right in your browser. Nothing to install.

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Students: your teacher sets up your account. Log in with your school email — your password starts out as your student ID.

Courses

Intro to Web Development

Build real web pages with HTML, CSS and JavaScript. No experience needed.

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Karel the Dog

Learn to program by giving commands to a dog on a grid. No experience needed — start here.

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