</> syntax.

SYNTAX / KOTLIN / READY COURSE

Learn Kotlin step by step.

Learn Kotlin with a structured path of guided examples, lesson questions, practical checks, and saved progress.

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01 / FIRST SAMPLE

Kotlin lesson example

KOTLIN
println("Hello, world!")

Guided Kotlin lessons and server-checked questions are available. The workspace will tell you whether this browser can run Kotlin code.

02 / QUESTIONS

Before you start

Is there a complete guided course?

The Kotlin learning path is open with guided lessons and server-checked questions. Code execution availability is shown in the workspace.

Do I need an account?

You can read the public pages without signing in. A free account is needed to save and verify most learning progress.

What does Syntax cost?

Core lessons are free to read. Optional one-time passes and current limits are listed on the Plans page.