Let's get you writing Kotlin. You have a few options depending on how deep you want to go.
Option 1: The online playground (easiest)
If you just want to play around, head over to the Kotlin Playground. It runs in your browser, no installation needed. You can write code, run it, and see the output instantly. Perfect for following along with these tutorials.
Option 2: Install IntelliJ IDEA
For serious development, IntelliJ IDEA is the way to go. It's made by JetBrains, the same company that created Kotlin, so the support is first-class. The Community Edition is free and has everything you need.
Once installed, create a new project, select Kotlin, and you're ready to code.
Your first program
Every journey starts with a "Hello, World!" — here's yours:
fun main() {
println("Hello, World!")
}
Type that into your editor or the playground and hit run. You should see "Hello, World!" printed out.
Try it Yourself →