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HTML Entity Encoder / Decoder

Encode special characters to HTML entities or decode them back

What is HTML Entity Encoder / Decoder?

HTML Entity Encoder / Decoder converts special characters like <, >, &, and quotes into their HTML entity equivalents (&lt;, &gt;, &amp;, etc.) and back. This prevents browsers from interpreting characters as HTML tags, which is critical for preventing XSS attacks and displaying code snippets on web pages correctly.

How to Use This Tool

  1. Paste text containing special HTML characters (like < > & quotes)
  2. Click Encode to convert them to safe HTML entities
  3. Or paste encoded entities and click Decode to see the original characters
  4. Copy the encoded text for safe use in your HTML documents

Common Use Cases

  • Escaping user input before displaying it on web pages to prevent XSS
  • Preparing code snippets for display in HTML blog posts or documentation
  • Encoding special characters in email HTML templates
  • Decoding HTML entities found in scraped web content or API responses

Frequently Asked Questions

Which characters are encoded?

The tool encodes <, >, &, single quotes, and double quotes — the characters most commonly used in HTML injection attacks and tag confusion.

Is HTML encoding enough to prevent XSS?

HTML entity encoding is one important layer of XSS prevention. For complete security, also implement Content Security Policy headers and input validation on your server.

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