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HTML Entities Encoder / Decoder

Encode special characters to HTML entities or decode entities back to text

Reference Table
&→&
<→&lt;
>→&gt;
"→&quot;
'→&#39;
ä→&auml;
ö→&ouml;
ü→&uuml;
Ä→&Auml;
Ö→&Ouml;
Ü→&Uuml;
ß→&szlig;

What are HTML Entities?

HTML Entities are special character sequences that represent reserved characters in HTML. Characters like <, >, & and quotation marks have special meaning in HTML and must be written as entities so they are displayed correctly in the browser. Special characters and accented letters can also be represented as entities, which ensures compatibility with different character encodings. Understanding HTML entities is essential for any web developer to prevent rendering issues and security vulnerabilities.

How do I use the HTML Entities Encoder?

Select the mode above: "Encode" converts special characters into HTML entities, "Decode" does the reverse. Enter your text and click "Convert". The encoder automatically replaces all critical characters like &, <, >, quotation marks, and special characters. The reference table shows you all supported characters and their entity equivalents for quick lookup.

Why use HTML Entities online?

Correct HTML entity encoding is essential for secure websites. Unencoded special characters can lead to XSS security vulnerabilities or break the HTML layout. Our tool runs entirely in the browser and sends no data to any server. It is ideal for web developers who need to quickly sanitize HTML code or read entity-encoded texts, ensuring both security and correctness in their web applications.

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Also try our URL Encoder for URL parameters, the Base64 Encoder for binary data, or the HTML Formatter for clean markup.

Frequently Asked Questions

Is the tool free?
Yes, encoding and decoding HTML entities is completely free with no registration.
Does it cover named entities like &amp; or &nbsp;?
Yes, all standard named entities and numeric entities are supported in both directions.
Is my text sent to a server?
No, all encoding happens locally in your browser, which makes it safe even for confidential markup.
Will it help prevent XSS?
Encoding user input as HTML entities is a key defense against XSS. However, real protection requires correct context-aware escaping in your application code.

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