HTML Entity Encoder & Decoder Online
Free online HTML entity encoder and decoder. Convert special characters to HTML entities and back. Prevents XSS and ensures valid HTML.
Input
Result
💡 What is this
HTML Entities
- HTML entity encoding converts characters like <, >, &, and quotes into their HTML entity equivalents.
- This prevents browsers from interpreting them as HTML tags, which is essential for XSS prevention.
📖 How to use
Step by Step
- Paste text with special characters and click Encode
- Or paste entity-encoded text and click Decode
- All standard HTML entities are supported
- Copy the safe output for use in your HTML
🎯 Use cases
When to use
- Sanitizing user input to prevent XSS attacks
- Displaying code snippets in HTML pages
- Ensuring special characters render correctly
- Preparing content for CMS or email templates
Frequently Asked Questions
What characters are encoded?▾
The encoder converts & < > " and ' into their HTML entity equivalents (& < > " '). These are the characters that can break HTML structure.
Does this prevent XSS?▾
Encoding these characters is a key defense against XSS attacks, as it prevents browsers from interpreting user input as HTML or JavaScript.