HTML Beautifier & Formatter
Format messy HTML with proper indentation
How it works
- 1Paste your HTML
Drop any HTML — a snippet, a minified page, or a copy from view-source.
- 2Pick indent style
Choose 2 spaces, 4 spaces, or tabs.
- 3Copy the formatted result
Get clean, readable HTML with proper indentation.
About HTML Beautifier & Formatter
Free online HTML beautifier. Paste minified, single-line, or messy HTML and get back cleanly indented markup with configurable indent size. Preserves attribute order, handles inline scripts and styles, and never leaves your browser. HTML Beautifier & Formatter on 712 Tools runs entirely inside your browser using modern JavaScript APIs — no server ever sees your data. That means instant results, complete privacy, and no upload limits.
Whether you need to format messy html with proper indentation for a debugging session, a quick sanity check, or a production incident, this tool is free to use as many times as you need. There are no watermarks, no sign-up, and no ads inside the tool itself.
Frequently asked questions
Does it validate my HTML?
Not strictly. It formats the markup as-is. For validation use the W3C validator or a linter like htmlhint.
Does it preserve inline scripts and styles?
Yes. Content inside <script> and <style> blocks is preserved and indented sensibly.
Is my HTML uploaded?
No. Formatting runs entirely in your browser.
Why did some whitespace change inside <pre>?
The beautifier is careful with <pre> and <textarea> content, but if you notice a change, please report it.
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