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How to Beautify or Minify JavaScript
The JavaScript Beautifier transforms minified or obfuscated JS into readable, indented code — or compresses readable code for production.
- Paste your JavaScript into the editor.
- Click Beautify to format or Minify to compress.
- Copy or download the result.
Why Beautify JavaScript?
Minified production JavaScript is nearly impossible to read. Beautifying it restores indentation, line breaks, and spacing — essential for debugging third-party scripts, analyzing browser bundles, or reviewing obfuscated code. Minification does the reverse: it strips whitespace, shortens variable names (with Terser), and removes dead code to reduce bundle size.
Why Use Our JS Beautifier?
- Terser-powered minification — production-grade compression with tree-shaking.
- Readable formatting — customizable indentation and brace style.
- ES2024 support — handles modern syntax including optional chaining and nullish coalescing.
- Private — your code never leaves the browser.
Frequently Asked Questions
Can it deobfuscate JavaScript?
It restores formatting (indentation, spacing) but does not reverse variable renaming or string encoding used by obfuscators. It makes minified code readable, not fully deobfuscated.
Does minification change how the code works?
No. Minification removes whitespace, renames local variables, and strips dead code. The behavior of the program remains identical.
Does it support TypeScript?
The beautifier handles JavaScript syntax. TypeScript type annotations may cause parse errors in some cases.
Is my code private?
Yes. Everything runs locally in your browser. No code is sent to any server.