HTML Entities Guide: Encode Special Characters for Safe Web Rendering
Learn how HTML entities work, why they matter for security, and how to encode and decode special characters for safe web development.
What Are HTML Entities?
HTML entities are special codes that represent characters that have special meaning in HTML. For example, < is written as < and > is written as >. Entities prevent browsers from interpreting special characters as HTML markup. They also enable displaying characters not available on standard keyboards, like © for the copyright symbol.
Why HTML Encoding Matters for Security
HTML encoding is critical for preventing Cross-Site Scripting (XSS) attacks. When user input is inserted into a web page without proper encoding, attackers can inject malicious scripts. Always encode user-generated content before displaying it. Our HTML Entities tool helps developers safely encode and decode content.
Common HTML Entities
Common entities include & (&), < (<), > (>), " ("), ' ('), (non-breaking space), © (©), ® (®), ™ (™), — (—), and … (…). Named entities are supported for common characters, while numeric entities (&#NNNN;) work for any Unicode character.
HTML Entities vs URL Encoding
HTML entities and URL encoding serve different purposes. HTML entities encode characters for safe display in HTML documents. URL encoding (percent-encoding) encodes characters for safe transmission in URLs. A space is in HTML but %20 in a URL. Use our HTML Entities tool for HTML and our URL Encoder for URLs.
Using the WebUtil HTML Entities Tool
Our free HTML Entities Encoder/Decoder converts special characters to HTML entities and back. Paste text, choose encode or decode, and get the result instantly. All processing happens client-side in your browser with no data uploads.
Use our free online tool to get started instantly.