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Tip
Always encode user-generated content before rendering it in HTML to prevent script injection.
Did You Know?
HTML entities can be represented by names, decimal codes, or hexadecimal codes.
HTML entities are strings that begin with an ampersand (&) and end with a semicolon (;). They are used to represent reserved characters or characters that cannot be easily typed on a keyboard. Encoding is the process of converting these characters into their entity equivalents (e.g., '<' becomes '<'), which tells the browser to display the character rather than interpret it as part of the HTML code.
Best Practice
Use UTF-8 encoding for your documents to reduce the need for extensive character entity usage.
Use this tool during the debugging phase to verify how data is being escaped by your backend. It is particularly useful when testing API responses, preparing documentation that includes code snippets, or manually sanitizing database entries. For production environments, always ensure your framework's templating engine handles encoding automatically, using this tool as a reference check.
Q: What is the difference between Named and Numeric entities? A: Named entities use descriptive names like ©, while numeric entities use the character's Unicode point like ©; both function similarly in browsers.
Q: Does this tool protect against all XSS attacks? A: Encoding is a primary defense, but it should be part of a broader security strategy including input validation and Content Security Policies.
Q: Why are my characters not decoding? A: Ensure the input starts with an ampersand and ends with a semicolon; missing parts or incorrect syntax will prevent proper decoding.
Q: Can I encode an entire HTML document? A: Yes, the tool will transform all reserved characters within the document into their respective safe entities.