HTML Entity Encoder & Decoder

Encode and decode HTML entities. Convert special characters to &, <, > and decode them back.

Free Always No Account Needed 100% Client-Side
Common entities: &lt; (<) · &gt; (>) · &amp; (&) · &quot; (") · &apos;(')
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How to use HTML Entity Encoder & Decoder Online

  1. 1
    Input Data or ParametersPaste your input string, code payload, or select parameters into the editor.
  2. 2
    Instant Local ComputationThe tool processes your request in real-time inside your browser using client-side JavaScript.
  3. 3
    Copy or Export OutputCopy the formatted result to your clipboard or download the output payload instantly.

About this tool

HTML entities are special codes used to display reserved characters and symbols in HTML. For example, the less-than sign < must be written as < in HTML to avoid being interpreted as a tag.

This tool encodes/decodes: - Reserved characters: < > & " ' - Extended ASCII and Unicode characters: © ® ™ € - Numeric character references: < (decimal) and < (hex) - All named HTML5 entities (over 2,000 named entities)

Use cases: Escaping user-generated content before inserting into HTML (XSS prevention), debugging HTML source, converting characters for safe inclusion in XML/RSS feeds, and displaying code examples in HTML.

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Frequently Asked Questions

Why do I need HTML entities?
HTML reserves certain characters (<, >, &, ") for markup. To display them as literal characters, you must use their entity equivalents.
What is XSS and how do entities help?
XSS (Cross-Site Scripting) is an attack where malicious scripts are injected via user input. HTML-encoding user input before displaying it prevents script injection.
What's the difference between &amp; and &#38;?
Both represent the & character. Named entities (&amp;) are readable; numeric entities (&#38; decimal, &#x26; hex) work for any Unicode character.
Should I use entities or CSS escape for non-breaking space?
Use &nbsp; in HTML content. In CSS content property, use \00a0. In JavaScript, use \u00A0.

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