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HTML Entity Encoder/Decoder

Convert special characters to HTML entities and vice versa.

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📥 Input
📤 Output
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📖 How It Works

What are HTML Entities?

HTML entities are special codes used to display reserved characters in HTML. For example, the less-than sign (<) must be written as &lt; to prevent browsers from interpreting it as an HTML tag.

Common HTML Entities

  • &lt; → < (less than)
  • &gt; → > (greater than)
  • &amp; → & (ampersand)
  • &quot; → " (double quote)
  • &apos; → ' (single quote/apostrophe)
  • &nbsp; → non-breaking space
  • &copy; → © (copyright)
  • &reg; → ® (registered trademark)

🔐 Security Tip: Always encode user input before displaying it in HTML to prevent XSS (Cross-Site Scripting) attacks. This tool helps you do exactly that!

🎯 Common Use Cases

  • Displaying Code: Show HTML/XML code examples on web pages
  • Security: Sanitize user input to prevent XSS attacks
  • Email Templates: Encode special characters for HTML emails
  • CMS Content: Prepare content for content management systems
  • Data Export: Encode data for XML/HTML export

❓ Frequently Asked Questions

Encode when displaying user-generated content, showing code examples, or inserting dynamic text into HTML attributes. This prevents browsers from misinterpreting special characters as HTML markup.

Named entities use descriptive names (like &amp;) while numeric entities use character codes (like &#38;). Both represent the same character. Named entities are more readable but not all characters have named versions.

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