Developer Utilities · Free tool
HTML Formatter
Format messy HTML into clean, indented code or compress it to a minified version instantly. A free, no-sign-up tool that runs safely in your browser.
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What it does
Beautify messy HTML into clean, 2-space indented markup, or minify it by stripping whitespace between tags. The formatter walks the token stream, handles void tags and self-closing elements, and preserves text content. Minify mode produces the smallest HTML possible while keeping the structure valid.
Great for cleaning up scraped markup, email templates, or dumping production HTML for inspection. For CSS/JS compression see CSS minifier and JS minifier; for JSON work, JSON formatter.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/html-formatter" width="100%" height="720" frameborder="0" loading="lazy" title="HTML Formatter" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Paste HTML into the input.
- Pick beautify or minify.
- Read the formatted output.
- Copy or download the result.
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Learn more
Guides about this topic
- Developers & Technical · GuideHow to format HTML properlyHandle whitespace-sensitive tags, template vs output HTML, and use Prettier and HTMLHint. Free instant formatting rules without any registration.
- How-To & Life · GuideHow to format HTMLSet indentation rules, self-closing tags, and attribute order while keeping version control friendly. Free online guide with minification trade-offs in seconds.
- Using Our Tools · GuideHow to generate QR codesMake QR codes for URLs, WiFi, vCard, or text. Learn error correction and sizing, then generate your QR code online free with no sign-up in seconds.
- Using Our Tools · GuideHow to create a strong passwordGenerate a strong password instantly online for free. Build high-entropy passphrases following NIST 2026 rules with no download needed.
- Developers & Technical · GuideHow to encode and decode Base64Understand the 3-to-4 mechanic and 33% overhead for standard, URL-safe, and MIME Base64. Free online reference to avoid common mistakes, no download needed.
- Design & Media · GuideHow to choose a color paletteBuild accessible color palettes using HSL theory, monochromatic to triadic schemes, WCAG contrast checks, and dark mode tips. Free, no-download guide.
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