Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
Hayta-UML is a Web2.0 UML tool, that allows users to draw UML diagrams. A core design decision is to have a native version-control inside the application.