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