The Ultimate Vanilla
JavaScript Sandbox.
JavaScript Sandbox.
JavaScript Sandbox.
Test algorithms, API fetches, and complex DOM logic directly in your browser's memory. Features a native developer console for instant debugging.
A Real Developer Console.
Standard online editors hide your console logs. Our custom engine intercepts and formats your arrays, objects, and errors exactly like Chrome DevTools.
The Official Monaco Editor Engine
NitroIDE doesn't just look like VS Code; it runs on the exact same open-source text editing core (Monaco). You get the identical syntax highlighting, multi-cursor editing, and bracket matching you are used to.
import * as monaco from 'monaco-editor';
monaco.editor.create(document.getElementById('container'));
Native Emmet Pre-Installed
No extensions required. Emmet abbreviations are built natively into the compiler. Scaffold massive HTML trees and complex CSS properties with a single Tab press.
> Press Tab
Zero RAM Spikes
Tired of Electron apps consuming 4GB of RAM? NitroIDE runs exclusively within your browser's optimized V8 engine. Perfect for Chromebooks and older hardware.
⚡ NitroIDE: Low Memory Footprint
100% Offline Capable
Unlike VS Code Online or GitHub Codespaces, NitroIDE doesn't require a continuous server ping. Once the page loads, you can code complex logic entirely offline.
compileLocal('index.html');
⚡ Rendered successfully.
No "node_modules" Blackhole
Skip the heavy local setup. Use our integrated CDN manager to inject React, GSAP, or Tailwind directly into the browser without touching a terminal.
⚡ React Ready.
Integrated Terminal Experience.
You don't have to give up your integrated terminal. Our developer console mirrors the desktop experience, capturing native object serialization, network errors, and CLI commands directly in the browser.
- Native Object Serialization: Inspect deeply nested JSON arrays exactly like Chrome DevTools.
- Syntax Highlighted Errors: Click any error to instantly jump to that exact line in the editor.
- Integrated CLI: Type
install gsap,export zip, orformatdirectly into the console to control the workspace.
The Desktop Experience, Unshackled.
We retained the premium, edge-to-edge dark mode aesthetic you love from desktop editors, but rebuilt the file system to be entirely virtual and draggable.
- Monaco Editor Engine: Powered by the exact same text-editing core as VS Code with Emmet support.
- Device Emulation: Instantly toggle your live preview between Desktop, Tablet, and Mobile breakpoints.
- Virtual File System: Manage multiple `.js` and `.css` modules in a clean, draggable slide-out sidebar.
Common Questions
Straight answers about the vanilla JS sandbox.
Do I need to install anything to run JavaScript?
No. Open the workspace and run vanilla JavaScript directly in your browser.
Can I see console output?
Yes. The built-in developer console shows logs, errors, and inspected objects like browser DevTools.
Can I use libraries like GSAP or jQuery?
Yes. Inject any library from unpkg through the workspace console.
Where is my code saved?
In your browser’s storage on your own device. Export a ZIP anytime to back up or move projects.
Full Workspace. $0.
Other cloud web IDEs charge you monthly just to keep your frontend projects private. We built a free, local code editor for the community.
Free Forever — The Only Plan
Every built-in feature free. No card required.