HTML Entity Encoder
Paste any text to encode HTML special characters into safe entities, or decode entities back to readable text. Essential for preventing XSS vulnerabilities.
How to Use the HTML Entity Encoder
Paste your text
Enter the text to encode or the HTML entity string to decode in the input field.
Encode or Decode
Click Encode to convert special characters to entities, or Decode to convert entities back to characters.
Copy the output
Click Copy and paste the safe string into your template or code.
What Is the HTML Entity Encoder?
HTML entities are sequences that represent characters that have special meaning in HTML. The < character starts a tag, & starts an entity, and " delimits attributes. If you embed these characters in a page without encoding them, the browser misinterprets them, breaking layout or creating cross-site scripting vulnerabilities. This tool encodes and decodes HTML entities using the same logic browsers use.
Frequently Asked Questions
The five critical HTML characters: & (ampersand), < (less-than), > (greater-than), " (double quote), and ' (single quote).
No. HTML entity encoding is for HTML content. URL encoding (percent-encoding) is for URLs. They use different syntax.
Encoding output prevents reflected XSS when inserting user-provided text into HTML. Always combine output encoding with a Content Security Policy for defense in depth.
Yes. The decoder uses a browser textarea element internally, which handles all named entities, numeric entities, and hex entities.