Does formatting change code behavior?

No. It only adjusts whitespace and structure for readability.

Will comments be preserved?

Yes, normal comments are preserved unless removed manually.

Can I control semicolons or quotes?

This lightweight formatter focuses on indentation. For strict style, use your project’s linter/prettier.

Yes. All processing happens in your browser.

Very large files may be slower, but there is no strict limit in the tool.

JavaScript Formatter

Format and beautify your JavaScript code for better readability.

JavaScript

Formatted JS

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