How to Use the HTML Entity & XSS Sanitization Security Encoder
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1
Paste raw HTML markup, untrusted user inputs, or script tags.
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2
Select encoding mode: Standard Named Entities (`<`, `>`), Decimal (`<`), or Hexadecimal (`<`).
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3
Copy the sanitized, safe string for direct insertion into templates or database records.
Practical Example & Use Case
Common Real-World Scenario
Escaping `` into `<script>alert("hack")</script>` so it renders harmlessly as visible text in blog comments.
Technical Notes & Limitations
Browser Engine Architecture
Strictly escapes all 5 primary OWASP XML/HTML dangerous characters.
Frequently Asked Questions
Why is HTML entity encoding essential?
Without entity encoding, user-submitted content can break out of HTML contexts and execute malicious JavaScript in visitors' browsers.