Best HTML Encoder/Decoder for Security
Free online html encoder/decoder designed for security
HTML encoding is the first line of defence against Cross-Site Scripting (XSS) attacks. Our encoder converts dangerous characters like <, >, &, and quotes into safe HTML entities, preventing malicious script injection.
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Open HTML Encoder/DecoderWhy It's the Best for Security
- Prevents XSS by escaping dangerous characters
- Encodes <, >, &, ', and " to HTML entities
- Batch encode multiple strings
- Decode entities back to original text
- Reference table for all HTML entities
Pro Tips for Security
- Always encode user-generated content before rendering
- Encode on output, not on input — store original data
- Use framework encoding functions instead of manual encoding
- Different contexts need different encoding (HTML, JS, URL, CSS)