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HTML Formatter
HTML Formatter Pro
Advanced semantic formatting and structural indentation engine
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About the HTML Formatter
Clean up the structure and indentation of HTML.
How to use the HTML Formatter
- Paste your HTML or click Load Sample.
- Choose 2 or 4 spaces of indentation.
- Press Structure & Format HTML, then Copy or Download.
When to use the HTML Formatter
- Making minified or generated HTML readable so that you can edit it.
- Tidying up code exported from a page builder or an email tool.
- Checking the nesting of elements to find a missing closing tag.
- Preparing HTML for documentation or code review.
Common mistakes to avoid
- Formatting whitespace-sensitive content such as pre blocks and inline text, which can change how spaces show in the browser.
- Assuming that neat indentation means the HTML is valid. Use the HTML Validator to check the structure.
- Formatting HTML that contains template tags from another language, which can confuse the layout.
Tips
- Use the HTML Validator to check for unclosed or mismatched tags.
- Use 2 spaces of indentation for deep HTML, since the nesting can get long.
- Keep a copy of the original before you reformat generated code.
Frequently Asked Questions
Formatting changes layout and indentation. Validating checks whether the HTML is correct.
No, apart from rare cases with whitespace inside inline elements.
Formatting adds line breaks and indentation. Minifying removes them to reduce size.
It lays out the code it is given. Missing or extra tags should be fixed with the validator.