This script is Free Software (get the source, use the force!). Copyright © 2005 and onwards, Raphael J. Schmid.
To include any of these characters into an HTML page, type &#, the number of the character (as shown below) and a ;.
Please note that you will only be able to see characters that you have installed a font for.
For the search engines: this page includes UTF-8 characters such as the heart character, the copyright character, and many more.