Why does formatting fail for some JS files?

The formatter expects valid Javascript syntax. If there is a missing bracket, semicolon, or invalid token, the parser will throw an error specifying the line.

Does this tool format modern ES6+ features?

Yes, it uses Prettier's Babel parser which fully supports modern JavaScript features including async/await, optional chaining, and classes.

JavaScript Beautifier

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Beautify and format your JavaScript codebase. Resolves bracket issues, formats spacing, and optimizes indentation settings.

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JS Prettifier

Indent:

Raw JavaScript Input

Beautified Result

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