JavaScript Beautifier
Reformat JavaScript for easier reading and debugging. It is fast, free, and designed for everyday development work.
🔒Private by design. Nothing is uploaded—this tool runs entirely in your browser.
How to use this tool
- Paste or type the content you want to process in the input area.
- Add the second input or options shown for this tool, when required.
- Select “Beautify JavaScript” to process everything locally in your browser.
- Check the result carefully, then use the copy button to save it.
How JavaScript Beautifier works
JavaScript beautification reorganizes compressed or uneven code into consistent blocks and indentation. It is helpful when inspecting generated snippets, debugging third-party examples, or reviewing code whose formatting was lost.
The formatter recognizes common JavaScript tokens, statements, braces, and expressions before inserting readable whitespace. It does not execute the supplied program, and it aims to preserve the original behavior while changing its layout.
Readable code is not necessarily safe code. Do not run unfamiliar output without reviewing it, and be aware that heavily obfuscated programs, embedded templates, or new language syntax may not format perfectly.
Frequently asked questions
What does JavaScript Beautifier do?
Reformat JavaScript for easier reading and debugging.
Is JavaScript Beautifier free?
Yes. You can use the complete tool without an account, subscription, or usage limit.
Is my input uploaded anywhere?
No. The tool processes your input inside the current browser tab and does not send editor content to a Toolsvanta processing server.
Does it work on mobile?
Yes. The input, controls, and results adapt to smaller screens, although larger code or data samples are usually easier to inspect on desktop.
Can I use the result in a commercial project?
Yes. You may use the result in personal or commercial work. Always review and test important output before deploying it.
Does Toolsvanta save my work?
No. Input and results are not saved by the tool. Copy anything you want to keep before closing or refreshing the page.
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