Is this HTML validator free to use?

Yes, this HTML validator and formatter is completely free to use with no subscriptions or premium features. It's part of FreeWWW's collection of free web development tools.

What HTML standards does this validator check?

The validator checks HTML5 standards by default, with options for HTML4 and XHTML validation. It identifies syntax errors, missing tags, invalid attributes, and accessibility issues.

Can I format minified HTML code?

Yes, the formatter can beautify and properly indent minified or compressed HTML code, making it readable and properly structured with customizable indentation.

Does this tool work on mobile devices?

Yes, the HTML validator and formatter is fully responsive and works on smartphones, tablets, and desktop computers with an intuitive touch-friendly interface.

What file formats can I upload?

You can upload .html, .htm, .xml, and .txt files. The tool also supports drag-and-drop file upload and direct text pasting for maximum convenience.

HTML Validator & Formatter - Free Online Tool

⚙️ Validation Options

HTML Standard

Check Accessibility

SEO Analysis

Strict Validation

🎨 Formatting Options

Indentation:

Format Attributes

Sort Attributes

Preserve Line Breaks

🔧 Processing Options

Remove Comments

Minify Output

Auto-close Tags

Fix Character Encoding

HTML Validator & Formatter

🔍 HTML Code Analysis & Formatting

📁 Drop your HTML file here

⚙️ Validation Options

🎨 Formatting Options

🔧 Processing Options

Download Options