Syntax Highlighting
Full CodeMirror-powered syntax highlighting for JavaScript and Node.js with Dracula and Light themes for comfortable coding.
index.js
Console Output
Write, run, and debug Node.js code instantly — no installation required. Full ES6+ support, syntax highlighting, real-time error detection, and live console output in your browser.
A Node.js online compiler is a browser-based development environment that lets you write and execute JavaScript code using the Node.js runtime without any local installation. Unlike traditional setups, our tool interprets your code instantly, making it ideal for rapid prototyping, learning, and testing.
Node.js uses Google's V8 JavaScript engine to execute code server-side, enabling features like asynchronous I/O, event-driven architecture, and CommonJS modules. With our Node JS editor, you can explore these features directly — from ES6+ syntax like async/await and Promise to advanced patterns like generators and closures.
Best practices include modularizing code, handling errors gracefully, and leveraging asynchronous patterns to avoid blocking. Whether you're studying algorithms, debugging logic, or exploring new JavaScript features, our one-compile environment gives you instant feedback — no build tools, no configuration, just pure Node.js development.
Everything you need to write, test, and learn Node.js — right in your browser.
Full CodeMirror-powered syntax highlighting for JavaScript and Node.js with Dracula and Light themes for comfortable coding.
Run code instantly with Ctrl+Enter or the Run button. See console output, errors, and warnings in milliseconds.
Real-time syntax validation catches errors before you run. Clear error messages with line numbers help you fix bugs fast.
Intelligent code hints and auto-completion powered by CodeMirror's hint engine accelerate your workflow significantly.
10+ built-in examples covering async/await, Promises, ES6 classes, generators, closures, design patterns, and algorithms.
One-click code formatting and beautification keeps your code clean, readable, and consistent with best practices.
Generate a shareable URL with your code embedded. Copy and share links with teammates, students, or in forums instantly.
Track execution time, line count, and character count in the live status bar. Optimize your code with real data.
From zero to running Node.js code in three simple steps.
Type or paste your Node.js JavaScript code into the editor. Use our snippets library to get started with examples instantly.
Hit the Run button or press Ctrl+Enter. Our engine validates and executes your code with real-time error detection.
View console output, errors, and warnings instantly in the output pane. Debug, tweak, and re-run in seconds.
Use the Share button to create a URL with your code. Perfect for sharing with teammates, students, or posting in forums.
Explore our full collection of online compilers for 10+ languages, plus 100+ free AI-powered tools to supercharge your workflow.