How to use JS Beautifier Online
- Start by adding the text you want to format into JS Beautifier Online.
- Set Indent so the output fits your use case.
- JS Beautifier Online updates the output automatically as you type.
- Use Copy to keep or reuse the result.
About this tool
There is no server behind JS Beautifier Online. JS Beautifier Online is a free JavaScript Tools utility that runs in your browser, doing its work on the input you provide without a backend.
It is designed to do one job well and stay out of your way. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.
Frequently asked questions
How do I use JS Beautifier Online?
Use JS Beautifier Online to format your input without installing anything using the Indent control; everything happens client-side.
Is JS Beautifier Online free to use?
Yes — JS Beautifier Online is completely free, with no usage limits.
Is my input private in JS Beautifier Online?
Yes — your input never leaves your device; JS Beautifier Online does all the work in your browser.
Does JS Beautifier Online work offline?
Once the page has loaded, JS Beautifier Online keeps working with no network connection.