HTML Beautifier Online Free
Pretty-print minified or messy HTML with consistent indentation to spot unclosed tags and nested structure issues. Part of the Web Formatter workbench — switch to CSS minify, JS minify, or XML format without leaving the page.
Browser Tools vs Server Upload — Why Local Processing MattersEverything runs in your browser. Your input is never uploaded, stored, or logged on our servers.
Related tools
Continue with tools that pair well with this one.
Related guides
Web Formatter Online (Free) — HTML, CSS, JS & XML
Beautify HTML, minify CSS/JS, and format XML on one workbench — live output with bytes saved.
Read guideJavaScript Minification: What Gets Removed?
How JS minifiers reduce file size — use the Web Formatter workbench for HTML, CSS, JS, and XML.
Read guideXML Formatter & Pretty Print Online (Free)
Format XML with indentation in the Web Formatter workbench — HTML, CSS, JS, and XML on one page.
Read guideFrequently asked questions
How do I beautify HTML online for free?+
Paste HTML into the HTML tab — indented output updates live. Switch tabs for CSS minify, JS minify, or XML format on the same page.
Does it validate HTML?+
It pretty-prints structure with indentation. For XML validation and formatting, use the XML tab in the same workbench.
Is this tool free?+
Yes. Every Utiliio utility is free with no sign-up, usage limits, or paywalls.
Do you store my data?+
No. Processing happens entirely in your browser. Your input never leaves your device.
Can I use this tool offline?+
Yes. Once the page loads, most tools continue working without an internet connection.