Part of the digital toolset of SavantTools.com  
Convert text to Unicode Character Entities
For converting Japanese (hiragana, katakana, and kanji), Chinese, Hanyu Pinyin, Cyrillic script, and other language characters into Unicode numerical character references (NCR) for HTML that can be stored as plain ASCII text.
input text
convert ASCII characters also.
Includes newline, return, space, etc.
HTML character entities
Conversion is done in your browser.  Text is not sent to the server.

Action link: http://savanttools.com/unicode-entity.asp?txt=<unicode string>

Closely related:  HTML encode / HTML decode  (?)   and   Unicode to ASCII