DevToolsKit

JavaScript Formatter

Free

Beautify and minify JavaScript code.

Runs 100% in your browser — data stays private
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About JavaScript Formatter

Beautify and minify JavaScript code instantly. Format messy minified JS into readable code or compress formatted scripts for production deployment.

Uses js-beautify for reliable formatting that developers trust. Handles functions, objects, arrays, and modern ES6+ syntax.

Key Features

  • Beautify JS with 2-space indent
  • Basic minification
  • Copy and download
  • Client-side only

How to Use

  1. 1Paste JavaScript code.
  2. 2Click Beautify or Minify.
  3. 3Copy the output.

Common Use Cases

Reading minified third-party libraries
Formatting code snippets for docs
Basic JS compression
Code review preparation

Frequently Asked Questions

Does it support TypeScript?+

It formats JavaScript syntax. TypeScript-specific syntax may not format correctly — compile to JS first.

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