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JavaScript Beautifier

Developer Tools 100% in-browser Popular

Paste minified or messy JavaScript to get clean, indented, readable code.

How to use the JavaScript Beautifier

  1. 1 Paste your JavaScript.
  2. 2 It is re-indented and formatted instantly.
  3. 3 Copy the clean code.

About the JavaScript Beautifier

Minified JavaScript is nearly impossible to read. This beautifier restores indentation, spacing and line breaks so you can understand or debug the code.

It uses the js-beautify library in your browser — your code is never uploaded.

Frequently asked questions

Does it run or check my code?

No, it only reformats the text; it does not execute or lint it.

Can it recover original variable names?

No tool can recover original names, but layout and structure are restored.

Related tools

CSS Beautifier Paste minified CSS to get clean, indented, readable styles.
HTML Beautifier Paste minified or messy HTML to get clean, indented markup.
JSON Formatter & Viewer Paste JSON to beautify, validate and explore it in a live collapsible tree — with search, expand/collapse and JSONPath.

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