Skip to main content
FreeFormatHub
code

JavaScript Beautifier & Minifier

Format, beautify, and minify JavaScript code with proper indentation, syntax validation, and optimization. Supports ES6+, JSX, and modern JavaScript features with comprehensive formatting options.

Size: 0 BLines: 1

JavaScript Input

Examples:

Formatted JavaScript

Options

How It Works

Input Your Data

Paste, type, or upload your data directly into the javascript beautifier & minifier. All processing happens locally in your browser for complete privacy and security.

Configure Options

Customize the tool settings to match your specific needs. Real-time processing with instant validation and error detection.

Process Instantly

Click the process button or enable auto-processing for real-time results. Lightning-fast performance with immediate feedback and validation.

Export Results

Copy results to clipboard, download as files, or share with others. Multiple export formats available for maximum compatibility.

Frequently Asked Questions

What JavaScript features are supported?
The tool supports ES6+ features including arrow functions, template literals, destructuring, async/await, classes, modules, and basic JSX syntax.
Can I customize the formatting style?
Yes, you can configure indentation, spacing around operators and brackets, quote style (single/double), semicolon insertion, and brace placement.
Does it validate JavaScript syntax?
The tool performs basic syntax validation including bracket matching, incomplete statements, and structural issues. For comprehensive linting, use dedicated tools like ESLint.
How does minification work?
Minification removes unnecessary whitespace, comments (optionally), and formatting while preserving code functionality. It doesn't perform variable renaming or advanced optimizations.
What about TypeScript support?
The tool handles basic TypeScript syntax but is primarily designed for JavaScript. For full TypeScript support, use specialized TypeScript formatters.

Related Tools

Code
HTML Prettier Online - Beautifier & Formatter

Format HTML code with prettier-style beautification online. Free HTML formatter with intelligent indentation, attribute sorting, validation, and minification — all in your browser.

✨
CSS Beautifier & Minifier

Format, beautify, and minify CSS code with proper indentation, validation, and optimization. Supports CSS3, media queries, and nested rules with comprehensive formatting options.

{}
JSON Formatter & Validator

Format, validate, and beautify JSON/JSONC with key sorting, inline arrays, duplicate key detection, and rich error details—all locally.

📋
XML Formatter & Validator

Format, validate, minify, and convert XML with namespace-aware parsing, attribute sorting, JSON export, and instant error diagnostics — purpose-built for SOAP, RSS, and config workflows.

🔧
Code Formatter

Related tool