HTML Encoder
Encode special HTML characters to safe entities. Supports essential characters (< > &), extended non-ASCII encoding, and numeric entity mode.
✅ Free ⚡ Live 📋 Entity Table 🔒 Private
📄
HTML Encoder ⚡ Live⚡
Live Encoding
Output updates as you type with count of entities encoded.
🎛️
3 Encoding Modes
Essential (<>&), extended (non-ASCII), or numeric entity (&) formats.
📋
Entity Reference Table
Common HTML entities table for quick reference while working.
🔒
100% Private
All encoding runs in your browser. Content never leaves your device.
⭐ User Reviews
A
Alex T.
Yesterday
⭐⭐⭐⭐⭐
Saved me hours. The live conversion and character counter are exactly what I needed for debugging API payloads.
Encoder ToolsS
Sofia K.
2 days ago
⭐⭐⭐⭐⭐
Super clean interface. The stats panel showing input vs output size ratio is incredibly useful for understanding encoding overhead.
Encoder ToolsD
Dan M.
3 days ago
⭐⭐⭐⭐⭐
I use this daily for development work. Fast, private, no ads. The sample button lets me test edge cases instantly.
Encoder ToolsL
Laura B.
1 week ago
⭐⭐⭐⭐⭐
Handles Unicode and special characters perfectly. The error messages are clear and tell me exactly what went wrong.
Encoder Tools📖 How to Use
1
Paste your text
Enter text containing HTML special characters like <, >, &, quotes.
2
Choose encoding mode
Select Essential, Extended, or Numeric entity encoding.
3
Review the count
The stats bar shows how many entities were encoded.
4
Copy the output
Click Copy Encoded to get the HTML-safe output.
🎯 Related Tools
❓ FAQ
What is HTML encoding?+
HTML encoding converts special characters to their HTML entity equivalents so they display correctly in a browser without being interpreted as HTML. For example, < becomes < and & becomes &.
Which characters must be HTML encoded?+
The five essential characters: < (becomes <), > (becomes >), & (becomes &), " (becomes "), and ' (becomes '). These have special meaning in HTML and must be escaped in text content and attribute values.
What is the difference between named and numeric entities?+
Named entities like < are readable and widely supported. Numeric entities like < work for any character by its Unicode code point. Both render identically in browsers.
When should I use extended encoding?+
Use extended encoding when your text contains non-ASCII characters (like accented letters, symbols, or emoji) and you need the HTML to be ASCII-safe — useful for older email systems or HTML that must be 7-bit clean.
Does HTML encoding protect against XSS?+
HTML-encoding user input before inserting it into HTML is one layer of XSS (Cross-Site Scripting) prevention. Always encode the characters < > & " ' when inserting untrusted content into HTML.