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Online HTML Entity Encoder & Decoder

Safely escape reserved HTML characters (<, >, &, ", ') into named or numeric entities to prevent XSS vulnerabilities and rendering glitches.

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Security and Character Escaping in Web Applications

Rendering user-supplied input without entity escaping exposes web applications to reflected and stored XSS vulnerabilities.

This tool converts reserved characters into standard HTML5 entities.

Frequently Asked Questions

Why do HTML entities prevent Cross-Site Scripting (XSS)?

By escaping characters like < and > into < and >, the browser displays them as harmless text rather than executing them as HTML tags or JavaScript scripts.

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