JavaScript Beautifier
Use this free online JavaScript Beautifier to beautify and format minified JavaScript code. It works instantly in your browser, and your data never leaves your device.
About the JavaScript Beautifier
The JavaScript beautifier restores indentation and line breaks in minified or compressed scripts, making them readable for debugging and review.
Also known as: js beautifier, javascript formatter, js formatter, beautify js.
How to use the JavaScript Beautifier
- Paste your input into the box above, upload a file, or click Sample to try an example.
- Pick any options you need. The JavaScript Beautifier processes your input instantly as you type.
- Click Copy to copy the output or Download to save it as a file.
Features
- Free with no signup and no daily limits
- Private: runs entirely in your browser
- Works on mobile, tablet and desktop
- Upload files and download results
- Live results as you type, with clear error messages
- Clean, fast interface with no popups
Frequently asked questions
Is the JavaScript Beautifier free to use?
Yes. The JavaScript Beautifier is completely free with no signup, no limits on normal use and no watermark.
Is my data safe?
Yes. Everything is processed by JavaScript inside your own browser. Your text is never uploaded to our server or stored anywhere.
Can I choose the indentation?
Yes. Pick 2 spaces, 4 spaces or tabs from the options, and the output updates instantly.
Does it work offline and on mobile?
Once the page has loaded, the tool runs in your browser and works on phones, tablets and desktops.
What else is this tool called?
People also search for it as js beautifier, javascript formatter, js formatter, beautify js. It is the same free tool.