JTagGen - Version 1.0 Based on the award winning TagGen, but built on the Java platform. Building JTagGen with Java technology allows us to meet the many requests of those who wish to use TagGen on the Macintosh, Unix, Linux, Microsoft Windows, or any other Java compatible operating system. We created JTagGen with all the features you would expect from TagGen and HISC. In other words, we did not build a decaffeinated version of TagGen just to claim diversity.