For educators switching careers
Teach yourself to code.
You know how to break down complex topics, follow structured curricula, and persist through difficult material. Those skills make you a faster learner than most. Apply them to code.
Structured like good curriculum
Each concept builds on the last. No jumping around, no assumed knowledge. The progression is intentional because it was designed by educators too.
Every lesson is an exercise
You wouldn't teach a class without practice problems. Neither do we. Write code, run tests, get feedback. Active learning from the first lesson.
Clear learning outcomes
Dart teaches you programming fundamentals. Flutter teaches you to build apps for iOS, Android, and web. Each course has a defined end point and real skills.
Dart → Flutter → real applications
A career change built on the learning skills you already have.
Write code from lesson one
Every lesson is an exercise you solve in your browser. Real code, real tests, real feedback.
Structured progression
Each concept builds on the last. You always know what to learn next.
Multiple exercise types
Quizzes, fill-in-the-blank, matching, and code keep every lesson engaging.
Instant feedback
Submit your answer and see test results in milliseconds.
Learn by doing
Solve exercises in your browser from the first lesson.
Join over 5,000 learners
Explore our courses
Pick a course and solve your first exercise.
Dart Course
An interactive Dart course where you code, test, and build apps directly in your browser.
Flutter Course
An interactive Flutter course where you code, test, and build apps directly in your browser.
S.O.L.I.D. Course
Learn the principles of how software should be structured, so you can guide AI to build better systems.
D.R.Y. Course
Learn to identify and eliminate code duplication, making your codebase cleaner and easier to maintain.
System Design Course
Learn how APIs, databases, caching, and load balancing fit together to build scalable systems.
Interactive courses
Every lesson is an exercise with instant feedback.
Your next career starts with one lesson
Interactive courses designed the way you'd design them.