HTML Formatter
Format and indent messy or minified HTML in your browser — preserving pre, script and style content. Free.
HTML formatter
Paste minified or messy HTML to indent it neatly.
Features
Common use cases
- 1Cleaning up minified HTML
- 2Making a template readable
- 3Formatting email HTML
- 4Debugging nested markup
- 5Preparing HTML for a diff
- 6Tidying pasted snippets
Related tools
About HTML formatting
An HTML formatter re-indents markup so its nesting is obvious. This tool tokenizes your HTML, tracks the tag depth, and re-emits each element on its own indented line — while leaving the contents of pre, script, style and textarea untouched, since whitespace matters there.
It is a lightweight formatter for readability, not a full parser — it runs entirely in your browser and never uploads your markup. For build pipelines, use a dedicated tool like Prettier.
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Got Questions? We Have Answers.
Does it preserve special tags?
Yes. The contents of pre, script, style and textarea are left untouched, since whitespace is significant there.
Can I choose the indent?
Yes — 2 or 4 spaces. The formatter tracks tag depth and re-emits each element on its own indented line.
Is my HTML uploaded?
No. Formatting runs entirely in your browser.
Is it a full parser?
It is a lightweight formatter for readability. For build pipelines, use a dedicated tool like Prettier.