HTML Entity Encoder / Decoder
Encode special characters to HTML entities or decode HTML entities back to characters instantly.
<div class="container">Hello & welcome to <Konvertio>!</div>Frequently Asked Questions
What are HTML entities?
HTML entities are special codes used to represent reserved or special characters in HTML. For example, < is represented as < and & is represented as &. They ensure characters are displayed correctly in the browser rather than being interpreted as HTML markup.
When should I encode HTML entities?
You should encode HTML entities whenever you display user-generated content in a web page, embed text in HTML attributes, or include special characters that might conflict with HTML syntax. This prevents XSS vulnerabilities and rendering issues.
What characters get encoded?
The most commonly encoded characters are: < (less than), > (greater than), & (ampersand), " (double quote), and ' (single quote/apostrophe). These are the five characters that have special meaning in HTML.
Is this tool safe for preventing XSS?
This tool encodes the five critical HTML characters that are commonly exploited in XSS attacks. However, proper XSS prevention also requires context-aware output encoding and Content Security Policy headers on your server.
Does encoding happen in my browser?
Yes, all encoding and decoding happens entirely in your browser using JavaScript. Your text is never sent to any server, making it completely private and secure.