HTML Encoder & Decoder
Escape special HTML characters into HTML entities (e.g. < to <) or decode HTML entities back to raw HTML code. Prevents XSS and ensures clean code rendering.
About HTML Entity Encoding
HTML Entity Encoding is the process of converting reserved HTML markup characters (such as <, >, &, ", and ') into their corresponding HTML entity names or character references (such as <, >, &, ", and ').
When displaying raw HTML code snippets in web browsers, entity encoding prevents the browser from interpreting the characters as actual executable HTML tags. It is also an essential defense against Cross-Site Scripting (XSS) attacks in web application development.
Real-World Use Cases
🛡️ XSS Security Prevention
Sanitize user-submitted comments, forum inputs, or chat messages to prevent malicious script injection into web pages.
📚 Documentation & Code Display
Safely render raw HTML/XML snippets inside <code> and <pre> tags on technical documentation sites or technical blogs.
📧 Email Template Formatting
Escape special characters in transactional HTML email templates to ensure consistent rendering across email clients.
Frequently Asked Questions
What characters are encoded by this tool?
The core reserved HTML characters encoded include < (<), > (>), & (&), " ("), and ' (').
What is Cross-Site Scripting (XSS)?
XSS is a web security vulnerability where an attacker injects malicious scripts into trusted websites. HTML entity encoding renders injected tags inactive, neutralizing XSS risks.
Is this tool free and secure?
Yes. All encoding and decoding occurs completely within your browser via DOM text parsing. No text is transmitted or saved remotely.