Developer Tools
JavaScript Beautifier
Format minified JavaScript back into readable code.
About this tool
Minified JavaScript is unreadable. Beautifier reformats it with proper indentation and line breaks so you can inspect, debug, or learn from production bundles.
How to use
- Paste your minified JS.
- Click Beautify.
- Read or copy the formatted code.
Benefits
- Restores readable structure
- Configurable indent
- Handles modern syntax
Real-world use cases
- • Debugging production bundles
- • Inspecting third-party scripts
- • Code review
Tips & best practices
- • 2-space indent is the de facto standard
- • Combine with a linter for deeper analysis
- • Source maps recover variable names; beautifiers don't
Frequently asked questions
Does it fix variable names?
No — minified names stay minified. Use source maps for that.
Does it handle TypeScript?
It treats TS as JS — usable but not perfect.
Is it safe?
Yes, everything runs in your browser.
Ratings & reviews
No reviews yet. Be the first.
Sign in to leave a rating.
Loading reviews…