FileSenixJavaScript Beautifier
Turn minified or messy JavaScript into clean, readable code.
Formatted Output
Enter your values and click beautify to see the results.
JavaScript is often minified for production, turning hundreds of lines into a single, unreadable block of text. This is great for website speed, but terrible when you need to debug a problem or understand what the code actually does. Our free JS Beautifier takes that compressed, impossible-to-read JavaScript and transforms it back into clean, properly indented code with clear formatting. It is perfect for developers who need to inspect third-party scripts, review obfuscated code, or simply clean up messy files. The entire process happens instantly in your browser, so your code is never sent to any server. No signup, no installation, just paste and beautify.
How to Use
1
Paste your messy JavaScript code into the input box.
2
Click the Beautify button.
3
The tool will add proper spacing and indentation automatically.
4
Copy your formatted code using the copy button.
Examples
Scenario
Analyzing third-party scripts
Result
If you need to understand how a minified library works, paste it here to make the code readable again.
Scenario
Fixing indentation issues
Result
Copied code often loses its formatting. Use this tool to ensure your code follows standard indentation conventions.
Frequently Asked Questions
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