Developer Tools
HTML Formatter & Beautifier
Format or minify your HTML code instantly with proper indentation.
Formatez et embellissez ou minifiez du code HTML
Features of the HTML Formatter
Smart Indentation
Correctly indents nested HTML tags based on the DOM tree structure, including deeply nested elements.
Attribute Formatting
Aligns and sorts tag attributes for consistent style across your HTML templates.
Inline vs Block Handling
Respects the difference between inline elements (span, a) and block elements (div, p) during formatting.
Minify Option
Strips whitespace between tags to produce compact HTML for faster page loads.
Comment Handling
Preserves or removes HTML comments depending on your workflow needs.
How to Use the HTML Formatter & Beautifier
- Paste your HTML markup into the input area.
- Click 'Format' to beautify or 'Minify' to compress.
- Review the formatted HTML in the output panel.
- Copy the formatted code or download it as an .html file.
FAQ
Does formatting change HTML functionality?▾
No. The formatter only changes whitespace between tags. It does not alter tag attributes, content, or the document structure.
Can I format HTML with embedded CSS and JavaScript?▾
Yes, the formatter handles inline style blocks and script tags, formatting CSS and JavaScript sections as well.
Why is my HTML not formatting correctly?▾
Malformed HTML with unclosed tags or invalid nesting may produce unexpected results. Fix syntax errors first for best output.
Does this work with HTML email templates?▾
Yes. HTML email templates often use table-based layouts — the formatter handles these structures correctly.
HTML Development Tips
- Always validate HTML with the W3C Markup Validator before deploying to production.
- Use semantic HTML5 elements (header, main, article, section) for better SEO and accessibility.
- Indent with 2 spaces for HTML to keep files compact and readable in all editors.
- Self-closing tags like <br> and <img> do not need a closing slash in HTML5.
- Use data-* attributes to store custom data on HTML elements without polluting CSS classes.
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