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HTML Entity Encoder
Encode or decode HTML entities to prevent XSS and display issues
What is HTML Entity Encoder?
Encode special characters into their HTML entity equivalents or decode HTML entities back to readable characters. HTML encoding is essential for preventing cross-site scripting (XSS) attacks and ensuring special characters like <, >, &, and quotes display correctly in web pages. This tool handles all standard HTML entities and is invaluable for web developers working with user-generated content.
How to Use HTML Entity Encoder
- 1Choose 'Encode' to convert special characters to HTML entities, or 'Decode' for the reverse
- 2Paste your text or HTML-encoded content into the input field
- 3Click the Encode or Decode button to process
- 4Copy the result and use it in your web pages or code
Frequently Asked Questions
HTML entities are special codes used to represent characters that have meaning in HTML syntax. For example, < is represented as < and & is represented as &. Using entities ensures these characters display correctly instead of being interpreted as HTML code.
HTML encoding prevents cross-site scripting (XSS) attacks by converting potentially dangerous characters into harmless entity codes. Without encoding, user input containing <script> tags could execute malicious JavaScript in other users' browsers.
The most critical characters to encode are: < (less than), > (greater than), & (ampersand), " (double quote), and ' (single quote/apostrophe). These characters have special meaning in HTML and can cause display issues or security vulnerabilities if not encoded.
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