This simple Java applet will use a few URL obfuscation methods to mask a URL. This isn't meant to be anything earth shattering, but maybe useful. It does more than basic URL encoding (although it does that). Also contains a library to do it all.
Jymini is a JavaScript minifier and obfuscator. While there are several of these out there, I couldn't find one that did exactly what I needed. This program is very flexible and has features that others don't.
An API and a graphical tool for inspection (viewing, searching and comparing) and manipulation (modification, obfuscation, refactoring of methods, fields, attributes and code) of classfiles for the Java platform.
JavaGuard is a general purpose bytecode obfuscator, designed to fit effortlessly into your regular build and testing process, providing peace of mind that your valuable Java code is more secure against decompilation and other forms of reverse engineering