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Write, Test, and Experiment with Code Snippets
A powerful code playground featuring Monaco Editor for writing and executing code in multiple languages. Perfect for testing snippets, debugging, and quick experiments.
The Code Playground provides a full-featured code editor with support for multiple programming languages. Whether you need to quickly test a JavaScript snippet or validate some JSON, the playground has you covered.
Tip: Click the sample button to load example code for each language and see the playground in action immediately.
The playground uses Monaco Editor, the same editor that powers VS Code, providing a rich coding experience with syntax highlighting, code completion, and more.
Full syntax highlighting for all supported languages with accurate colorization.
Intelligent code completion and suggestions as you type.
Automatic word wrapping for better readability of long lines.
Navigation minimap disabled for cleaner interface, focus on code.
14px font size with Fira Code monospace font for optimal readability.
2-space tab indentation, configurable in editor settings.
The playground supports 6 popular programming languages, each with specific features and capabilities.
Full execution support with console.log capture. Run code directly in the browser and see output instantly.
console.log("Hello, World!");Full TypeScript syntax support with type checking. Ready for compilation in full implementation.
const greeting: string = "Hello";Python syntax highlighting. Ready for execution in full implementation with Python runtime.
print("Hello, World!")HTML markup support with proper syntax highlighting. Ready for preview in full implementation.
HelloCSS styling support with full syntax highlighting. Ready for validation in full implementation.
.container { color: red; }JSON validation and formatting. Instantly validates JSON syntax and provides formatted output.
{"key": "value"}Customize your coding environment with multiple editor themes. The theme preference is saved automatically and persists across sessions.
Dark theme with dark background - perfect for low-light environments.
Light theme with light background - ideal for bright environments.
High contrast black theme - maximum visibility for accessibility.
Note: Your theme preference is automatically saved to localStorage and will be restored when you return to the playground.
Execute your code and see results instantly. The execution behavior varies by language.
console.log("Hello");
console.log({ name: "World" });Output: Captured logs displayed with proper object formatting.
function add(a, b) {
return a + b;
}
add(2, 3);Output: Return values shown as “Return value: 5”
The output panel displays execution results, errors, and validation status in a clean, readable format.
Displays console.log output, return values, and execution status. Objects are pretty-printed for easy reading.
Runtime errors and syntax errors are displayed in a red alert box above the output panel.
JSON validation shows success/failure status with formatted output for valid JSON.
Output panel shows the current language color indicator for quick reference.
Several actions are available to help you work efficiently with your code.
Execute your JavaScript code and display output. Shows “Running...” during execution.
Clear all code, output, and errors. Start fresh with an empty editor.
Copy your current code to the clipboard. Useful for transferring code to other applications.
Download your code as a file with the appropriate extension (.js, .ts, .py, etc.).
Load example code for the current language. Great for testing and learning.
Switch between editor themes. Preference is saved automatically.
Test out JavaScript ideas quickly without setting up a full project. Perfect for prototyping algorithms or data transformations.
Quickly validate and format JSON responses or configuration files. See errors immediately if JSON is invalid.
Great for learning new programming concepts or teaching code examples. Load sample code to see how things work.
Store and organize frequently used code snippets. Download or copy them when needed.
Isolate and test problematic code snippets. See console output captured in real-time.
Write and test code examples for documentation. Ensure examples work before including them in docs.