HTML Validator

Check your HTML code for errors, formatting issues, and best practices

Lines of code: 0 | Errors: 0 | Warnings: 0

Documentation

Features

  • Validate HTML syntax and structure
  • Check for proper tag nesting and closing
  • Verify attribute syntax and values
  • Accessibility compliance checking
  • Best practices recommendations
  • Code formatting and beautification
  • Real-time error highlighting
  • Detailed error reporting

How to Use

  • Paste your HTML code in the input textarea
  • Select the validation options you want to enable
  • Click "Validate HTML" to check your code
  • Review the validation results and error messages
  • Use "Format Code" to beautify your HTML
  • Click "Clear All" to reset everything

Validation Options

  • Validate attributes: Check for proper attribute syntax and values
  • Check tag nesting: Verify proper HTML tag hierarchy
  • Accessibility checks: Ensure WCAG compliance
  • Best practices: Check against HTML best practices
  • Auto-format: Automatically format code after validation
  • Highlight errors: Visually highlight errors in the code