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Babel Formatter

Format modern JavaScript and React JSX with the Babel parser.

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How to use Babel Formatter

Paste your code. The formatter engine loads in a moment the first time.
Adjust the options if you need to.
Copy the formatted result.

About Babel Formatter

Babel is the parser most of the JavaScript world uses, and it understands the newest syntax proposals, JSX included. This formatter parses your code with it and prints it again with consistent indentation, quotes and line breaks.

Unlike the JS Beautifier, it will refuse to format code with a syntax error and tell you where the error is. That makes it a good way to find a missing bracket as well.

Frequently asked questions

Does it support JSX?

Yes, React JSX is parsed and formatted.

What happens if my code has a syntax error?

You see the error with the line and column, and nothing is formatted.

How is it different from the JS Beautifier?

The beautifier only adjusts whitespace and accepts almost anything. This one fully parses and reprints the code, so its output is more consistent but it needs valid syntax.

Why did the first run take a second?

The formatting engine for this language is downloaded the first time you use it, then cached by your browser. After that, formatting is instant and nothing leaves your machine.

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