I threw together this HTML character code utility today while searching for arrow characters. I was surprised to see that they go up almost to 60,000 and includes the alphabet for just about every language, including braille.
Check it out at http://verysimple.com/content/html/
I was thinking that it would be cool to have it searchable but I don’t see myself spending the time to index thousands of characters. If you have any suggestions, feel free to post a comment.
