I've used chummer for 5e and I think either 4e or 3e Shadowrun (can't remember where you can find the versions for older Shadowrun editions). They even included life module character creation in 5e even though it's not the primary character creation method for that edition. It's a really nice character creator, as easy to use as the MegaMekLab is for Total Warfare. If they can make a character builder for AtoW, I'm all for it.