JavaScript Beautifier

Staring at a single line of compressed JavaScript that makes no sense? Our Free JavaScript Beautifier is the professional solution for reformatting and "unminifying" your scripts. In 2026, JavaScript is the backbone of the modern web, and clean code is vital for identifying logic errors and security vulnerabilities.

Our formatter doesn't just add spaces; it understands ES6+ syntax, Async/Await, Arrow Functions, and Optional Chaining. It correctly indents nested loops, aligns curly braces, and ensures your variables are easy to follow. Whether you are a student deconstructing a library or a developer debugging a production issue, our tool provides a perfectly structured output that follows clean-code principles.

Technical Features of Our JavaScript Beautifier:

• Advanced Logic Parsing: Handles modern ES2026 features without breaking.

• Custom Indentation: Choose between 2-space, 4-space, or Tab formatting.

• Brace Style Options: Choose between "Collapsed" (Same line) or "Expanded" (Next line) braces.

• Comment Preservation: Keeps your // and /* */ notes intact while cleaning the code.

• 100% Free & Secure: Your proprietary script logic never leaves your browser at HelpingWebTools.com.

What is a JavaScript Beautifier? A JavaScript Beautifier is a tool that takes unformatted, minified, or disorganized JS code and reapplies standard formatting rules (like indentation and line breaks) to make it readable for developers.

Does this tool "Unminify" variable names? No tool can truly "unminify" variable names (like changing a back to userName) because that information is lost during minification. However, it will expand the structure so you can see the logic flow clearly.

Does this tool support TypeScript or JSX? While optimized for standard JavaScript, our 2026 engine can handle most TypeScript and JSX/React syntax. It is excellent for quickly cleaning up component files.

Will beautifying my code change how it runs? No. JavaScript ignores "non-significant" whitespace. Beautifying only changes the visual layout for the developer; the functional logic remains exactly the same.

Why should I use this for security? Malicious scripts are often "packed" or "obfuscated" into a single line to hide their intent. Beautifying is the first step in a security audit to reveal what a script is actually doing (like sending data to an external API).