HTML Formatter
Format and beautify messy HTML markup. Supports HTML, CSS, and JavaScript. Adjustable indent size. Runs entirely in your browser — nothing is uploaded.
Frequently Asked Questions
Which languages does the formatter support?
HTML, CSS, and JavaScript. Select the language tab before pasting your code.
Does formatting change the behaviour of my code?
No. The formatter only adjusts whitespace and indentation. The code executes identically before and after formatting.
Why would I format my HTML?
Minified or machine-generated HTML is hard to read and debug. Formatting restores indentation and line breaks so you can inspect the structure, find missing closing tags, and understand nesting at a glance.
Is my data private?
Yes — completely. Everything runs locally in your browser. Nothing is sent to any server, and nothing is retained after you close the tab.
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