JavaScript Formatter Online
Use JavaScript Formatter Online to format and beautify JS in seconds. Paste your JavaScript code or upload a JS file to improve readability with proper indentation and formatting. Free browser-based JavaScript formatter.
Click to upload file
Supports .js files
Formatted JavaScript will appear here after clicking the format button...
What is JavaScript Formatting?
JavaScript formatting adds consistent indentation and line breaks so functions, blocks, and statements are easier to read and maintain.
Benefits:
• Beautify compressed or messy JavaScript
• Improve readability for reviews and debugging
• Standardize indentation quickly
• Works without installing tools
• Copy or download formatted output
Use this formatter when debugging minified scripts, cleaning pasted snippets, or preparing JavaScript for documentation and sharing.
How to Use JavaScript Formatter Online?
Paste or Upload JS
Enter JavaScript directly or upload a .js file.
Format the Code
Click Format JavaScript to beautify your script.
Review Output
Inspect the formatted result in the output panel.
Copy or Download
Copy formatted JavaScript or download it as a file.
Frequently Asked Questions - FAQs
Does formatting change JavaScript logic?
No. Formatting only adjusts whitespace and line breaks.
Can I format minified JavaScript?
Yes. Paste minified code and click Format to expand it into readable blocks.
Is this the same as Prettier?
This tool provides quick browser-based beautification. For project-wide formatting rules, use Prettier or ESLint in your build pipeline.
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