JavaScript Beautifier – iDhani Tools

JavaScript Beautifier

Format and beautify your JavaScript code with proper indentation and structure

Characters: 0
Characters: 0

Beautification Options

4 spaces
80 characters

What is a JavaScript Beautifier?

A JavaScript Beautifier is a free online tool that makes JavaScript code clean and easy to read. It fixes messy code by adding proper indentation, spaces, and line breaks. This is very helpful if your code is minified or not well formatted.

Using a JavaScript Beautifier improves readability and makes debugging much faster. It is also useful for students, developers, and teams working on projects together. Clean code is always easier to understand and maintain.

Our JavaScript Beautifier gives you quick formatting with options you can customize to match your coding style.

Why Use Our JavaScript Beautifier?

Instant Formatting

Beautify JavaScript instantly with one click. No need to waste time fixing spaces or indentation by hand.

100% Secure & Private

All processing is done inside your browser. Your JavaScript code never leaves your computer, keeping it safe and private.

Customizable Options

Choose indentation size, type (spaces or tabs), and line wrapping to suit your coding style.

Completely Free

Our JavaScript Beautifier is free forever. No hidden charges, no limits, no watermarks.

Benefits of Using Our JavaScript Beautifier

Code Quality Improvement

  • Cleaner and more readable JavaScript code
  • Faster debugging and error detection
  • Improved teamwork and collaboration

Development Efficiency

  • Save time by avoiding manual formatting
  • Easy to add in workflows and projects
  • Understand compressed or minified code quickly

Learning & Education

  • Helps beginners understand JavaScript structure
  • Easy to study external code and libraries
  • Perfect for teaching and presenting code

Code Consistency

  • Keep a consistent coding style in projects
  • Enforce team coding rules automatically
  • Get code ready for publishing and documentation

How to Use Our JavaScript Beautifier

1

Paste Your JavaScript

Copy and paste your JavaScript code into the input box. You can also type directly or check syntax with the validate button.

2

Choose Your Options

Select your formatting options like indentation size, spaces or tabs, and line wrapping length.

3

Get and Copy Results

Your formatted code will appear instantly. Use the copy button to move it to your clipboard.

JavaScript Formatting Best Practices

Our JavaScript Beautifier applies standard formatting automatically, but knowing the best practices will help you even more:

Consistent Indentation

Always use the same indentation. Most developers prefer 2 or 4 spaces.

Clear Line Breaks

Break long lines for better readability. Keep line length under 80–100 characters.

Proper Spacing

Add spaces around operators, commas, and inside loops or conditions.

Consistent Brace Style

Choose one brace style (K&R or Allman) and stick to it across your project.

With our JavaScript Beautifier, you can easily follow these best practices and keep your code neat and clean.

Frequently Asked Questions

No. Beautifying only changes formatting like spaces, line breaks, and indentation. Your JavaScript code will still run exactly the same.
Yes, our tool can beautify minified JavaScript. It adds line breaks and indentation so it’s readable again. But short variable names from minification cannot be restored.
Since it runs in your browser, the limit depends on your device. Most modern devices handle files up to several MB easily. Very large files (10MB+) may run slower.
Our JavaScript Beautifier supports all modern versions including ES6 and above. It works with arrow functions, async/await, classes, destructuring, and more.
Yes, you can adjust options like indentation size (2–8 spaces), tabs or spaces, and line length. This helps you follow your own coding style or team rules.
Yes, we also include a validation feature. You can check for syntax errors before beautifying to avoid problems and get better results.