Free HTML Encoder / Decoder

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Convert special characters to HTML entities or decode HTML entities back to text.

Input (Plain Text/HTML)

0 characters

Output (HTML Entities)

0 characters

Common HTML Entities
<
&lt;
Less than
>
&gt;
Greater than
&
&amp;
Ampersand
"
&quot;
Double quote
'
&#39;
Single quote
&nbsp;
Non-breaking space
©
&copy;
Copyright
®
&reg;
Registered
&trade;
Trademark
&euro;
Euro

About HTML Encoding

HTML encoding is the process of converting special characters into HTML entities. This is essential for displaying characters that have special meaning in HTML (like < and >) and for preventing Cross-Site Scripting (XSS) attacks.

Security Benefits

Always encode user input before displaying it on a web page. This prevents malicious scripts from being executed. For example, if a user enters <script>alert('XSS')</script>, encoding converts it to safe text that displays literally instead of executing.

Frequently Asked Questions

HTML encoding converts special characters into HTML entities. For example, < becomes &lt; and > becomes &gt;. This prevents browsers from interpreting these characters as HTML tags.

HTML encoding is crucial for security (preventing XSS attacks) and for displaying special characters correctly in web pages. Without encoding, characters like < could break your HTML structure.

The most important characters to encode are: < (less than), > (greater than), & (ampersand), " (double quote), and ' (single quote). These can affect HTML parsing or enable security vulnerabilities.

Yes! All encoding/decoding happens entirely in your browser. No data is sent to any server.

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