For engineering managers
Training that justifies itself.
Leadership wants numbers. Each course has defined skills, measurable completion, and costs less per developer than a single day of conference attendance.
See Team PlansDefined outcomes per course
Dart fluency. Flutter architecture. SOLID principles. Kubernetes operations. Each course has specific, demonstrable skills.
Exercises prove understanding
Every lesson runs tests against the developer's code. Completion means they solved the problem, not just watched it.
Scales with your team
Team plans cover your whole org. Add developers as you hire. One subscription, one platform, every course included.
Less than a conference ticket per developer
Ongoing access to every course. No per-seat surprises.
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
An interactive Dart course where you code, test, and build apps directly in your browser.
Flutter
An interactive Flutter course where you code, test, and build apps directly in your browser.
S.O.L.I.D Principles in OOP
Learn the principles of how software should be structured, so you can guide AI to build better systems.
D.R.Y. (Don't Repeat Yourself)
Learn to identify and eliminate code duplication, making your codebase cleaner and easier to maintain.
TypeScript
Learn TypeScript from variables to generics, with coding challenges you solve directly in your browser.
System Design
Learn how APIs, databases, caching, and load balancing fit together to build scalable systems.
Microcontrollers
From GPIO pins and breadboard circuits to sensors, displays, motors, and communication protocols like I2C, SPI, and UART.
Electricity and Current
Learn how electricity works, from voltage, current, and resistance to circuits, Ohm's law, and common components like resistors, LEDs, and capacitors.
Interactive courses
Every lesson is an exercise with instant feedback.