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21 tools availableAll run in-browser

JavaScript Formatter & Minifier

Beautify or minify JavaScript code for readability or production use. Basic formatting with indentation control.

Indent:
JavaScript Inputjavascript
0 chars
Formatted JSjavascript
0 chars

About this javascript formatter & minifier

The JavaScript formatter makes compressed snippets readable and can minify small scripts for demos or embeds. It is useful when checking third-party snippets, debugging a pasted function, or preparing short examples without opening a full editor.

Common uses

  • Beautify minified JavaScript snippets before reviewing them.
  • Minify small helper scripts for examples or prototypes.
  • Inspect generated code copied from browser sources.

Practical notes

Do not treat formatting as a security review; unknown JavaScript should still be inspected carefully before running it.

Use your project linter for final code style because it can enforce team-specific rules.

Frequently Asked Questions

Why minify JavaScript?

Minification removes whitespace, comments, and unnecessary characters from JavaScript files, reducing their size and improving web page load times.

What is the difference between minification and obfuscation?

Minification only removes whitespace and comments to reduce file size. Obfuscation additionally renames variables and restructures code to make it harder to understand. This tool only minifies.

All processing happens in your browser. No data is sent to any server.