Client-Side Engine

Code Beautifier & Formatter

Format and indent unreadable or minified HTML, CSS, and JavaScript with custom spacing.

Language:

Indentation:

Raw Unformatted Code

Beautified & Formatted Code

function calculateTotal(items) {
  let sum=0;
  for(let i=0;
  i<items.length;
  i++) {
    sum+=items[i].price*items[i].qty;
  }
  return sum;
}

Overview

Free online code beautifier. Format and indent messy JavaScript, CSS, and HTML source code with custom indentation widths directly in your web browser.

100% Private: All operations run locally on your device. Files never touch our servers.

Code Beautifier: Formatter for HTML, CSS & JavaScript

The Code Beautifier restores human readability to minified or tangled code with consistent tab/space indentation.

How to Beautify Minified Code

Fast & Intuitive

Paste Compact Code

Drop minified scripts into the formatter.

Select Indent Spacing

Pick 2 or 4 space indentation.

Copy Clean Code

Use the pristine, structured code.

Key Highlights & Advantages

100% Client-Side Privacy

Zero server uploads. Everything processes securely within your local browser memory.

Instant Zero-Latency Execution

Immediate results with no file upload or download queues.

Unlimited & Completely Free

No registration, no paywalls, and no hidden quotas.

Cross-Device Responsive Experience

Seamlessly optimized for mobile smartphones, tablets, and desktop workstations.

Modern In-Browser Execution Architecture

All data processing runs natively via W3C compliant browser hardware acceleration.

Expert Tips & Best Practices

Use beautification to quickly inspect vendor JavaScript libraries when debugging.

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Frequently Asked Questions

1 Q&As

Which languages are supported?

HTML, CSS, JavaScript, JSON, and SQL.

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Client-Side EngineLaunch →