PrivConvert

Text tool

JS and HTML Formatter

Format JavaScript, JSON, CSS, Markdown, or HTML with Prettier.

Add your input

Your file stays in this browser.

Settings

Good to know1 file · 25 MB max
Upload a text, Markdown, HTML, CSS, or JavaScript file or paste textResult: text files
  • Your text stays in this browser while the tool runs.
  • Text previews are capped for responsiveness when output is large.

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How it works

How to use JS and HTML Formatter online

  1. Upload a text, Markdown, HTML, CSS, or JavaScript file or paste text. The tool validates the published file type and size limits before the run.
  2. 1 adjustable setting. Review these settings before processing.
  3. Run the tool in your browser, review the result, and download the text files.

Overview

JS and HTML Formatter with local-first browser processing

Format JavaScript, JSON, CSS, Markdown, or HTML with Prettier. Review supported input, output format, settings, browser requirements, and practical limits before starting.

Input

Upload a text, Markdown, HTML, CSS, or JavaScript file or paste text

Output

text files

Limits

1 file · 25 MB max

Best for

JS and HTML Formatter use cases

  • Prepare the text files for sharing, archiving, or another file workflow.
  • Process the job in your browser without creating an account.
  • Check the published limits before processing larger or unusual inputs: 1 file · 25 mb max.

Processing

What happens in your browser

PrivConvert uses prettier for this workflow. 1 adjustable setting. No special browser capability is required for typical inputs

Your text stays in this browser while the tool runs.

Related tools

Case ConverterColor ConverterCSS Minifier and FormatterFind and Replace TextHTML Escape and UnescapeHTML to Markdown

FAQ

JS and HTML Formatter questions

See how privacy works

Is JS and HTML Formatter free to use?

Yes. This tool is free to use in your browser and does not require an account.

Are my files private?

JS and HTML Formatter uses prettier in the browser. Selected files are processed locally when the required browser features are available, while application, library, model, security, and limited analytics requests may load separately.

What limits should I know about?

1 file · 25 MB max. Very large, encrypted, damaged, or unusual files may not be supported by every browser.