ASCII Text to Hex Converter

I found a very good/simple online ASCII text to Hex converter. It will also do the reverse and turn Hex into ASCII text. Here it is:
http://www.dolcevie.com/js/converter.html

If you don't know what hex is, here's the Wikipedia page to explain all :-)
http://en.wikipedia.org/wiki/Hexadecimal



Update July 2014
The above link doesn't work any longer :-(
Here's another web page that does the same and more:
http://www.asciitohex.com/