🟨 JavaScript Playground

Completely safe. All code runs in your browser sandbox and is never uploaded to any server. We use try-catch for safe execution without affecting the page.

All browser-native JavaScript features are supported, including ES6+ arrow functions, destructuring, template literals, Promise, async/await, classes, modules, etc. Node.js-specific APIs (fs, path, etc.) are not supported.

We intercept console.log, console.error, console.warn, console.info, and console.table methods, collecting output in real-time during code execution into the output panel.

Code runs on the browser main thread. Long-running code (like infinite loops) may cause page freezing. Avoid infinite loops and use setTimeout for heavy computations.