Paste text with special chars, click Encode to convert to entities. Decode entities back to readable.
Special chars need encoding in HTML. Essential for displaying code samples and user content safely.
<, >, &, quotes have special meaning in HTML.
Critical for preventing XSS attacks from unencoded input.
Yes, encode snippets for safe display.
Mismatched tags, unescaped &, missing quotes, unclosed tags.
HTML reserves certain characters for syntax: < opens a tag, > closes one, & starts an entity, " and ' delimit attribute values. If you want to display these characters in your page content, you need to escape them as HTML entities: < for <, > for >, & for &, " for ", ' for '. Browsers parse HTML looking for these characters to start/end tags; escaping prevents your content from breaking the page structure.
Beyond the syntax characters, HTML entities exist for thousands of symbols: © (©), ® (®), ™ (™), € (€), £ (£), ¢ (¢), ° (°), ± (±), — (—), – (–), … (…), « («), » (»), ¶ (¶), § (§). For non-Latin scripts (Chinese, Arabic, Hindi), use UTF-8 directly — entities are only needed for special HTML characters and math/typographic symbols.
Double-encoding (&amp;lt; instead of &lt;) renders as escaped ampersands and breaks content. Forgetting to escape user input lets attackers inject scripts (XSS attacks). Using entities for non-special characters (&Hello&) is harmless but ugly. Not escaping attributes in HTML output can break layouts. Always escape: <, >, &, and quotes in attribute values. Most modern frameworks auto-escape, but understanding the underlying mechanism is essential.
Encode and decode HTML entities with the Toolzie HTML Encoder. Convert special characters like <, >, &, and " into safe HTML entities and back — essential for displaying code on web pages and preventing XSS vulnerabilities.
Encoding prevents special characters from being interpreted as HTML tags, which stops cross-site scripting (XSS) attacks and display errors.
<, >, &, ", ', and other characters with special meaning in HTML are encoded to their entity equivalents.
The HTML entity for & is &.
Yes — always HTML-encode code samples before displaying them on a web page to prevent the browser from rendering them as actual HTML.