Code Playground — Write, Run, and Visualize Code

Run JavaScript, Python, Java, C, and C++ directly in the browser. Step-by-step variable tracing, call stack visualization, and real-time data structure output.

Supported Languages

JavaScript — Runs natively in the browser with instant output
Python — Powered by Pyodide (CPython compiled to WebAssembly)
Java — Compiled and executed via Judge0 API
C & C++ — Server-side compilation with full output

Features

Line-by-line execution tracing with variable watch panel
Automatic data structure detection and visualization (arrays, trees, graphs, linked lists)
Call stack visualization for recursive algorithms
DevAI debugging assistant for intelligent hints
Monaco Editor (same as VS Code) with syntax highlighting

Code Playground — Write, Run, and Visualize Code

Run JavaScript, Python, Java, C, and C++ directly in the browser. Step-by-step variable tracing, call stack visualization, and real-time data structure output.

Supported Languages

JavaScript — Runs natively in the browser with instant output
Python — Powered by Pyodide (CPython compiled to WebAssembly)
Java — Compiled and executed via Judge0 API
C & C++ — Server-side compilation with full output

Features

Line-by-line execution tracing with variable watch panel
Automatic data structure detection and visualization (arrays, trees, graphs, linked lists)
Call stack visualization for recursive algorithms
DevAI debugging assistant for intelligent hints
Monaco Editor (same as VS Code) with syntax highlighting