ASCII Email Encoder
A simple form for encoding text to ASCII characters. It’s by no means “100% bot-proof” and will most likely someday not be an effective way to hide text from harvesters, but I've been using this exact method for the past 6–8 months with great success. There are other similar Web-apps out there, but many seem to have their own set of caveats (e.g. some convert all text to lowercase, etc.). This incarnation should display whatever characters you enter as they are entered (case intact).
*Note: It’s not much to look at right now (I’ll dress it up some when I get a chance), but should be functioning fine. Please feel free to leave any bugs you run into in the comments and I’ll see what I can do.