JavaScript Beautifier
RunDev
JavaScript Beautifier - Free online tool. No signup required.
Results appear here...
Fast
Instant results
Private
Browser-only
Free
No signup
FAQ
Does it support large files?
Handles reasonably large inputs. Files over 10MB may take a few seconds depending on your device.
What browsers are supported?
All modern browsers: Chrome, Firefox, Safari, Edge. Some features need recent versions.
Is the output production-ready?
Yes, generates clean, standards-compliant output suitable for production use.
How to Use
- Select formatting options
- Copy the formatted result
- Paste your code or data into the input
- Review output with syntax highlighting
FAQ
What is JavaScript Beautifier?
Format JS code.
Is it free?
Yes, completely free.
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