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JavaScript Beautifier

Beautify JavaScript code with consistent indentation and readable formatting. Edit highlighted code, then copy or download the result.

Input code

0 B
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Output code

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Paste code or upload a UTF-8 file to get started.Code stays on your device · HTML / CSS / JS are never executed
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HOW IT WORKS

Three steps. Ready for what’s next.

01

Add your code

Paste source code, upload a UTF-8 file, or load the example.

02

Format the source

Choose the available options and process the code locally. Syntax colors and line numbers help you inspect both editors.

03

Copy or download

Copy the processed source or download it with the correct file extension.

About JavaScript Beautifier.

JavaScript Beautifier in your browser

Beautify JavaScript code with consistent indentation and readable formatting. Edit highlighted code, then copy or download the result. The input and output editors highlight JavaScript syntax and show line numbers. Processing runs in a local worker; source code is not uploaded or executed.

Readable formatting

Choose two, four or eight spaces for indentation. Formatting changes presentation; it is not a validator and cannot repair every syntax error.

Inspect before using

Copy the exact output or download a .js text file. HTML is shown as source rather than rendered as a webpage. Review and test the result with your application before replacing a deployed file.

A LITTLE CLARITY

Good questions. Simple answers.

A few helpful answers before you get started.

Do I need an account?

No. This tool is open to everyone without signing in.

Does this tool need the internet?

Code is processed locally in your browser. Source code is neither uploaded nor executed.

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