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HTML Entity Encoder/Decoder

Last updated:

Last updated:

Convert special characters to HTML entities and back. Essential for web developers working with text containing special symbols.

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Common HTML Entities Reference
&&
<&lt;
>&gt;
"&quot;
'&#39;
 &nbsp;
©&copy;
®&reg;
&euro;
£&pound;
¥&yen;
&mdash;

What the HTML Entity Encoder/Decoder Does and Why It Matters

The HTML Entity Encoder/Decoder converts special characters such as <, >, &, and quotes into their HTML entity equivalents (and back again), in your browser, with a live preview of how the result renders. It makes text safe to drop into HTML.

This matters because raw special characters can break a page or open it to injection: an unescaped < can start an unintended tag, and an & can mangle following text. Encoding entities ensures the characters display literally instead of being interpreted as markup.

How to Use HTML Entity Encoder/Decoder

  1. Paste your text or HTML into the input.
  2. Choose to encode (characters to entities) or decode (entities back to characters).
  3. Run the conversion.
  4. Use the preview to confirm how it renders, then copy the result.

Supported Inputs and Limitations

What you provide

  • Text or HTML to encode, or entity-encoded text to decode

What you get

  • Entity-encoded text (or decoded characters)
  • A live preview plus copy-ready output

Known limitations

  • Encoding makes characters display literally; it is not a complete security sanitizer for untrusted HTML.
  • Decoding untrusted input and inserting it as live HTML can be unsafe — handle it carefully.
  • It works on the characters you provide; it does not validate full HTML structure.

Privacy and Security

Encoding and decoding run entirely in your browser. Your text is processed on your device and is never sent to NovaTools or any external service.

Frequently Asked Questions

When should I encode HTML entities?

Whenever you display user-supplied or special-character text inside HTML, so characters like < and & show literally instead of being treated as markup.

Is encoding the same as sanitizing?

No. Encoding makes characters display safely, but a full sanitizer is needed to safely accept arbitrary untrusted HTML.

Is my text uploaded?

No. Everything is processed locally and the text stays in your browser.

Related Tools

About HTML Entity Encoder/Decoder

Our free HTML Entity Encoder/Decoder tool helps you convert special characters to their HTML entity equivalents and back. This is essential when working with text that contains HTML-special characters like angle brackets, ampersands, and quotes.

How to Use

  1. Type or paste your text into the input area above.
  2. Click Encode to HTML Entities to convert special characters to entity format.
  3. Click Decode from Entities to convert entity codes back to characters.
  4. View the rendered preview to see how your HTML will display.
  5. Use Copy Result to copy the output to your clipboard.
  6. Click Clear to reset both fields.

Why Use HTML Entities?

Reserved Characters: Characters like <, >, and & have special meaning in HTML and must be encoded to display correctly.
Special Symbols: Display symbols like copyright (©), trademark (™), and currency symbols that may not be on your keyboard.
Unicode Support: Represent any Unicode character using numeric entities.
XSS Prevention: Encoding user input helps prevent cross-site scripting attacks.

Frequently Asked Questions

Is my data sent to a server?

No. All encoding and decoding happens entirely within your browser. Your text is never transmitted to our servers or stored anywhere.

What's the difference between named and numeric entities?

Named entities use descriptive names like &amp; while numeric entities use Unicode code points like &#38; or &#x26;. Both represent the same character.

Do I always need to encode special characters?

Only when displaying HTML code within HTML, or when characters might be interpreted as markup. In normal text content, most characters display fine.

Can I encode all Unicode characters?

Yes! Any Unicode character can be represented as a numeric entity. Characters without named entities will be converted to decimal (&) or hexadecimal (&) format.

What about non-breaking spaces?

The non-breaking space (&nbsp; or &#160;) is a special entity that prevents line breaks at that position, commonly used for formatting.

Recommended next reading

Use these practical guides to understand when this tool is the right choice, what to check before exporting, and which workflow usually comes next.