How to use HTML Formatter
- Enter or paste your HTML into the input field to begin.
- Set Indent so the output fits your use case.
- Watch the output update instantly while you adjust the HTML.
- Finish by choosing Copy to take the output with you.
About this tool
HTML Formatter is a static, client-side tool with no backend. HTML Formatter handles your HTML on your device and shows the result right away.
Your markup is never uploaded. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What does HTML Formatter do?
HTML Formatter runs entirely on your device: add your input using the Indent control, and it formats it locally in real time.
Does HTML Formatter cost anything?
No — HTML Formatter is completely free, with no sign-up and no hidden limits.
Does HTML Formatter upload my data?
No — HTML Formatter processes everything locally in your browser, so nothing you enter is uploaded or stored.
Will HTML Formatter change my HTML structure?
HTML Formatter only reformats or analyzes what you paste; the underlying structure of your HTML is preserved.
Does HTML Formatter work on mobile?
Yes — HTML Formatter is just a web page and runs on any modern browser, including phones and tablets.