What is the HTML Entity Encoder / Decoder?
The HTML Entity Encoder/Decoder converts special characters to their HTML entity equivalents and vice versa. This is essential for preventing XSS vulnerabilities and ensuring special characters render correctly in web browsers.
The tool supports all standard named entities (like &, <, >, ©), numeric character references ({), and hexadecimal references ({). It processes text instantly in your browser.
How to Use This HTML Entity Encoder / Decoder
Encode or decode HTML entities in seconds:
- Choose 'Encode' to convert characters to entities, or 'Decode' to convert entities back.
- Paste your HTML or text into the input area.
- Click the button to see the converted result.
- Copy the output to use in your HTML documents.
Common Use Cases for Developers
HTML entity encoding is vital for web security and display:
- XSS Prevention: Encode user input before displaying it in HTML to prevent cross-site scripting attacks.
- Email Templates: Encode special characters in HTML emails to ensure proper rendering across email clients.
- CMS Content: Convert special characters when migrating content between different content management systems.
- Code Display: Encode HTML tags when displaying code examples in web documentation.
Frequently Asked Questions
What are HTML entities?▼
HTML entities are special codes used to represent characters that have special meaning in HTML (like < and >) or characters that are difficult to type directly. For example, < represents the < character.
Why do I need to encode HTML entities?▼
Encoding prevents XSS (Cross-Site Scripting) attacks and ensures special characters display correctly in browsers. Without encoding, characters like < could be interpreted as HTML tags.
What entities does this tool support?▼
The tool supports all standard named entities (like &, <, >, ", ©, ™) as well as numeric character references ({) and hexadecimal references ({).
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