Learn KOTLIN-PLAYGROUND with Real Code Examples

Updated Nov 26, 2025

Explain

Provides a lightweight, in-browser environment for Kotlin development.

Supports running Kotlin code with immediate output in a console panel.

Enables sharing code snippets through unique URLs.

Facilitates learning, experimentation, and rapid prototyping in Kotlin.

Includes options for using Kotlin scripting, standard libraries, and experimental features.

Core Features

Syntax-highlighted editor for Kotlin code

Run button for instant execution

Console panel for displaying results and errors

Option to include Kotlin standard library

Code sharing and embedding support

Basic Concepts Overview

Snippet - a single Kotlin code example

Editor - area to write Kotlin code

Console - panel showing execution output

Libraries - standard Kotlin libraries included automatically

Sharing - generate URLs to share code snippets

Project Structure

Single file snippets (Kotlin or KTS)

Optional import statements for libraries

Output displayed in console panel

No persistent project directories

Snippets can be saved via JetBrains account or shared link

Building Workflow

Open Kotlin Playground and create a new snippet

Write Kotlin code in the editor

Use Run button to execute code and check output

Optional: embed or share the snippet via URL

Experiment with Kotlin features and libraries

Difficulty Use Cases

Beginner: learn Kotlin syntax and basics

Intermediate: test functions and small scripts

Advanced: explore advanced language features

Expert: share reusable Kotlin examples

Instructor: create teaching snippets for classrooms

Comparisons

Kotlin Playground vs Replit -> Kotlin Playground: Kotlin-focused, lightweight; Replit: multi-language full IDE

Kotlin Playground vs JSFiddle -> Kotlin Playground: Kotlin scripting; JSFiddle: front-end HTML/CSS/JS

Kotlin Playground vs IntelliJ IDEA -> Playground: online snippets; IntelliJ: full-featured IDE

Kotlin Playground vs CodeSandbox -> Playground: Kotlin only; CodeSandbox: full-stack JS apps

Kotlin Playground vs JetBrains Academy -> Playground: snippet experimentation; Academy: structured learning platform

Versioning Timeline

2017 - Kotlin Playground launched by JetBrains

2018–2020 - Added KTS scripting support and improved UI

2021 - Enhanced sharing and embedding features

2023 - Support for experimental Kotlin features

2025 - Continuous updates to editor, console, and language compatibility

Glossary

Snippet - a small Kotlin code example

Editor - area to write code

Console - panel showing execution results

KTS - Kotlin scripting file

Share URL - link to share snippet online