Multi-Tab Sandboxed JS Compiler

Online JS Compiler

Compiler User Guide

Welcome to the Online JS Compiler – your sandboxed environment for writing, editing, and running JavaScript code directly in your browser. Our multi-tabbed editor lets you work on multiple scripts simultaneously while keeping everything isolated and secure.

Key Features:

How to Use:

  1. Create or Switch Tabs: Click the plus icon () to open a new tab or click an existing tab to switch focus.
  2. Write Your Code: Use the code editor to type or paste your JavaScript code. Benefit from syntax highlighting, code formatting, and real-time feedback.
  3. Run Your Code: Click the "Run" button () to execute your code. The output, logs, and any errors will appear in the console area below.
  4. Toggle Full Screen: Use the full-screen icon to switch between full-screen and windowed modes, allowing for a distraction-free workspace.
  5. File Operations: Use the File menu to upload a file into a new tab or to save your current code as a .js file.

Additional Tips:

The compiler executes your code in a secure sandbox so you can experiment freely with JavaScript. Enjoy testing, debugging, and prototyping your ideas all in one place!

File
Upload File
Save File
Edit
Select All
Ln 1, Col 1
UTF-8
Spaces: 3
JavaScript

Online JS Compiler

Welcome to the Online JS Compiler – a secure, in-browser environment for writing, testing, and running your JavaScript code. Our multi-tabbed editor provides you with full flexibility to manage several scripts simultaneously, ensuring a seamless and interactive coding experience.

Key Features

Get started instantly – experiment, debug, and prototype all within your browser. Enjoy the speed and simplicity of our compiler with no hidden fees.

Compiler User Guide – Code with Confidence

Whether you’re a beginner or an experienced developer, our Online JS Compiler gives you a complete, self-contained coding platform. Write your code, test it out, and see the results in real time—all without ever leaving the page.

What Is the Online JS Compiler?

The Online JS Compiler is a fully sandboxed environment that lets you write and run JavaScript code directly in your browser. It features a modern interface with multi-tab support, real-time syntax highlighting, and easy file management.

How to Use the Compiler

  1. Create or Switch Tabs: Click the plus icon () to open a new tab, or select an existing tab to switch between your scripts.
  2. Write Your Code: Use the editor to type or paste your JavaScript code. Enjoy syntax highlighting, automatic formatting, and other smart editor features.
  3. Run Your Code: Click the "Run" button () to execute your script. See your output, log messages, and any errors in the console panel below.
  4. Toggle Full-Screen Mode: Activate the full-screen view for a more focused workspace by clicking the full-screen icon.
  5. Manage Your Files: Use the File menu to upload new files into a tab or save your current script as a .js file.

Additional Tips

Our compiler runs your code in a protected sandbox, so you can confidently experiment without any risk to your system. Whether you’re debugging code or prototyping new features, enjoy a reliable and efficient coding experience every time.

Explore More Tools

Frequently Asked Questions (FAQ)

How do I run my JavaScript code?

Simply write or paste your code into the editor and click the "Run" button. The output and any errors will be displayed in the console below.

How do I open a new tab?

Click the plus icon () located on the tab bar to create a new tab, where you can start a new script.

Can I upload my JavaScript files?

Yes – use the File menu to upload a JavaScript (.js) file directly into a new tab.

Is my code executed safely?

Absolutely. Your code runs in a sandboxed environment to ensure both your safety and that of your data.

Do I need to register to use the compiler?

No, our Online JS Compiler is free and open to everyone without any registration required.