JSON Formatter & Validator
Beautify, minify and validate JSON with helpful error messages.
JavaScript Formatter
Beautify JavaScript with proper indentation and line breaks.
Formatting only changes whitespace and line breaks, so your code keeps working exactly the same.
100% private
Runs in your browser. Nothing is uploaded.
Instant results
No waiting, no queues, no page reloads.
Free & unlimited
No sign-up and no usage caps.
How to use the JavaScript Formatter
Beautify JavaScript with proper indentation and line breaks. It is one of 25 free coding tools on ToolzHive.
- 1 Paste or type your input into the editor on the left.
- 2 Choose any options. The result updates as you type.
- 3 Copy the output with one click or download it as a file.
Frequently asked questions
Is the JavaScript Formatter free to use?
Yes. The JavaScript Formatter is completely free, with no sign-up, no usage limits and no watermarks.
Is my data safe?
Yes. The tool runs entirely in your web browser, so the text and files you use are processed on your own device and are never uploaded to or stored on our servers.
Does it work on phones and tablets?
Yes. JavaScript Formatter works in any modern browser on desktop, Android and iOS, with no app to install.
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