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SECURITY TOOL

HTML Entity Encoder/Decoder

Convert text to HTML entities and back. Highlights XSS-dangerous characters, supports named, numeric, and hex formats. All processing happens in your browser.

100% client-side Real-time conversion XSS-safe output
Encode — Text → Entities
Encoded entities will appear here…
Decode — Entities → Text
Decoded text will appear here…
XSS Warning: Characters highlighted in < > " ' & are injection vectors. Always encode user input before rendering in HTML.
Best Practice: Use textContent instead of innerHTML when inserting user data. This auto-escapes entities and prevents XSS.

Entity Reference

Char Named Numeric Description
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