Free JavaScript Formatter – Beautify JS
Re-indent JavaScript for readability. Formatting does not run your code; optional preview is sandboxed. Local processing.
Everything runs in your browser. Your input is not sent to a server by this tool.
Re-indent JavaScript for readability. Formatting does not run your code; optional preview is sandboxed. Local processing.
Everything runs in your browser. Your input is not sent to a server by this tool.
Open the JavaScript Formatter, enter your input, and run the action. Results appear on the same page so you can copy or download without leaving the tool.
The JavaScript Formatter processes data with client-side JavaScript where the implementation allows, so core input stays in your browser session for that step.
Get a quick, free result for everyday tasks without installing software or creating an account on a separate service.
No. Execution only happens if you explicitly run Preview in the sandbox.
Yes.
Double-check important outputs before using them in documents or production systems. Keep original files when working with uploads until you confirm the result.
ToolBoxy keeps the Free JavaScript Formatter free and simple: open the page, finish the task, and move on—no account wall. Related tools on this page point you to the next step.