JavaScript Beautifier
Format and indent JavaScript code.
About JavaScript Beautifier
Minified JavaScript is fast to load but hard to read and edit. Our JavaScript beautifier takes minified or messy JS and reformats it with clear indentation and line breaks. Paste your code, click beautify, and copy the result. Useful when you need to inspect or modify third-party scripts or old bundles. Everything runs in your browser; your code stays on your device. No sign-up, no limits. A simple way to make JavaScript readable again.
How to use JavaScript Beautifier
Paste minified or messy JavaScript and click Beautify. Indentation and line breaks are applied for readability.
Related guides for JavaScript Beautifier
Pro tips for JavaScript Beautifier
- Paste minified or messy JavaScript and click Beautify.
- All processing runs in your browser—your input is not uploaded to our servers.
- Bookmark this page if you use this tool often.
FAQs about JavaScript Beautifier
What does beautifying do?
It adds indentation and line breaks to minified or messy JavaScript so it’s easier to read and edit.
Does it change how the code runs?
No. Only formatting changes; behavior stays the same.
Is my code sent anywhere?
No. Beautification runs in your browser; your code doesn’t leave your device.
Can I beautify JSON?
JSON is a different format. Use a JSON formatter for JSON; use this for JavaScript code.