HTML Entity Encoder / Decoder
Encode special characters to HTML entities or decode HTML entities to text online for free.
Common HTML Entities
&&
<<
>>
""
''
©©
®®
™™
€€
££
¥¥
°°
±±
××
÷÷
µµ
¶¶
··
½½
¼¼
¾¾
««
»»
––
——
¡¡
¿¿
ÀÀ
ÁÁ
關於此工具
Encode special characters like <, >, &, and quotes to their HTML entity equivalents, or decode HTML entities back to readable text. Prevents XSS and ensures correct HTML rendering.
使用方法
Enter Text
Paste the text or HTML to encode or decode.
Encode or Decode
Click Encode to convert specials to entities, or Decode to convert entities back.
Copy
Copy the result.
使用場景
XSS Prevention
Encode user input before inserting into HTML to prevent cross-site scripting.
常見問題
What characters are encoded?
All characters with named HTML entities plus any non-ASCII characters as numeric entities.