JavaScript Beautifier

What does the JavaScript Beautifier do?

The beautifier tokenises your code (respecting strings, template literals, regex and comments), then rebuilds it with indentation for each block, a new line after each statement, spaces around operators and after commas, and keywords spaced correctly — so if(a){b()} becomes a properly indented if-block.

It is a quick readability tool. For consistent formatting across a project, use Prettier in your editor.

Examples

Minified function

function greet(n){const m=`Hi ${n}`;return m} becomes a readable, indented function.

Common use cases

• Reading minified scripts
• Debugging third-party code
• Learning from compact examples

Features and benefits

• Private by design — your data is processed on your device and never uploaded.
• Free with no account, no watermark and no usage limits.
• Works on phones, tablets and desktops in any modern browser.

Limitations to know

• Comments and unusual syntax may be placed differently from your style guide.
• It cannot restore original variable names from minified code.