Free HTML Formatter & Validator
Make HTML easier to read with indentation, minification and browser parsing checks. Review the result before using it in a live website.
Parse check is not a full HTML standards validator.
Private: your files are processed in your browser and are never uploaded to our server.
How to use
- Paste HTML into the editor.
- Choose Format, Minify or Parse Check.
- Review and copy or download the output.
Format HTML and inspect markup
This tool formats HTML using a lightweight browser-side formatter and checks whether the browser can parse the markup. HTML parsers recover from many errors automatically, so Parse Check is not a full standards-conformance validator.
Scripts and styles are treated as raw-text elements by the formatter. Always review formatted output before using it in production.
Frequently asked questions
Does parse check prove HTML is valid?
No. Browsers repair many malformed HTML documents. This tool provides a practical parse check, not a full W3C conformance report.
Does formatting change my page?
It should preserve the markup’s general structure, but whitespace can matter in preformatted text and some inline contexts. Review the output before use.
Is my HTML uploaded?
No. Formatting and parsing happen in your browser.