For data analysts
Analyze less. Build more.
You already think in logic, loops, and data transformations. Dart feels familiar because your analytical skills transfer directly. Build the tools and apps you've been requesting from engineering.
Your logic skills already work
SQL queries, Python scripts, Excel formulas. You think in data transformations. Dart's type system and structured syntax build on that foundation.
Write code that runs real tests
Every exercise gives you a problem, you write the solution, and automated tests verify it works. The same feedback loop you use with data validation.
Build apps, not just scripts
Go from Dart fundamentals to Flutter apps that run on iOS, Android, and web. Build the dashboards and tools you've been asking engineering to make.
Dart → Flutter → production apps
A structured path for analytical minds learning to build.
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.
Build the tools you've been waiting for
Interactive courses for analytical thinkers.