Developer Tools

JavaScript Beautifier

Format or safely minify JavaScript without executing it.

Browser-only processingYour files are processed locally in your browser and are never uploaded to our servers.

Browser-only processing

What JavaScript Beautifier does

JavaScript Beautifier provides focused controls for this task and presents copy-ready or downloadable output.

Supported formats or input: Supported input: text or values supported by the tool. The workspace shows the available output options.

How to use JavaScript Beautifier

  1. Open JavaScript Beautifier and add the required input.
  2. Review the available settings and choose the values that fit your task.
  3. Generate the result, inspect it and copy or download it.

Example and processing method

Example: For example, enter a small representative input first to confirm that JavaScript Beautifier produces the format you need before processing a larger task.

Processing uses browser APIs and purpose-built client-side code for this tool; input is not sent to a Toolare processing endpoint.

Common mistakes and limitations

Common mistake: Check the input format and options before exporting. A valid result can still be unsuitable if the wrong settings were selected.

Browser memory, format support and device performance can affect large or complex inputs. Review important output before relying on it.

Privacy

Tool input and generated output remain in your browser.

No registrationLocal processingClear output

Related tools

JSON Formatter and ValidatorBeautify, minify and validate JSON safely.CSS BeautifierBeautify or minify CSS with indentation controls.HTML BeautifierFormat HTML as inert text without injecting it into the page.SQL FormatterFormat SQL with dialect and keyword-case options.Base64 Encoder and DecoderEncode and decode UTF-8 text or local files.URL Encoder and DecoderEncode URL components or decode encoded text.

Frequently asked questions

Is this tool free to use?

Yes. JavaScript Beautifier is free and does not require an account.

Is my input uploaded?

No. Current processing happens locally in your browser.