Is my HTML markup sent to a server?
No. All formatting takes place locally within your browser.
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HTML Formatter
Format HTML markup locally in your browser with 2- or 4-space indentation controls, clear Prettier error feedback, and instant copy.
Privacy
Tool workspace
How it works
Paste HTML into the input field. The tool formats it locally in your browser with the selected indentation.
Use cases
Format HTML markup for review, sharing, or development.
Privacy
Your data is parsed securely in your browser memory and disappears when the page reloads.
Limitations
The tool formats markup using Prettier; it is not an HTML validator or minifier. Extremely large files might be slow depending on your device.
HTML Formatter FAQ
Does it validate or minify HTML?
No. It formats markup only; parsing errors are reported by Prettier.
Is the formatted HTML stored anywhere?
HTML markup remains in browser memory and is never transmitted to servers.
What indentation options can I choose?
You can format with 2- or 4-space indentation.
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