JS Formatter and Minifier
Turn a jumbled script into neatly indented code, or strip it down to a compact size for production.
Paste your JavaScript below:
Result:
How to format or minify JavaScript
- Paste your JavaScript into the input box.
- Choose Format to beautify the code or Minify to compress it.
- Click Process and inspect the result.
- Copy the output for your project.
FAQs
What does the formatter do?
It tracks opening and closing braces to indent blocks, and splits statements onto separate lines so the code structure is easier to follow.
What does minifying JavaScript do?
It removes line and block comments and collapses whitespace to shrink the file size. The logic itself is not changed.
Will the output always be perfect?
The formatter is a simple beautifier, so very unusual or highly compressed code may need manual tweaking afterwards.
Is the tool free?
Yes. Every Handio tool is free, with no sign-up, no limits and no data leaving your browser.
Related Tools
Why format or minify JavaScript?
Formatted code reveals the structure of functions and blocks, making minified or bundled scripts possible to read. Minifying shrinks file size for faster page loads.
- Prettify minified code before editing or debugging a script.
- Minify JavaScript for production to reduce download size.
- Reformat pasted snippets to match your own code style.
Tips and Limits
The formatter is best-effort for complex syntax and may not handle every edge case of modern JavaScript. Everything runs locally, so your code never leaves the browser.