SJ Games GURPS Software  
   The official SJ Games licensed software page, linking to the work of authorized shareware authors and other electronic items that support their games, with GURPS earning the heaviest support. Items for many platforms are included.
   http://www.sjgames.com/general/gm-aids.html#gurps

GURPS Vehicle Designer  
   GVD makes creating vehicles a breeze. Free demo version available. Windows.
   http://www.makosoft.com/gvd/

GURU  
   GURPS Character creation software for Windows. Detailed and customizeable.
   http://www.aquariuscreations.com/GURU.html

GURPS Character Builder  
   The official GURPS character generation software (Windows only).
   http://www.sjgames.com/gurps/characterbuilder/

MakeChar  
   DOS-based GURPS character making software. Fast, small, and customizeable. A demo of the upcoming Java Makechar is also on-site.
   http://www.seurer.net/games/utilities/makechar.html

GURPS NPC Generator  
   Free online random character generator for multiple genres.
   http://ayinger.no-ip.info

GURPS Vehicle Builder  
   Windows program for Vehicle creation, including rules from most GURPS books.
   http://www.sjgames.com/gurps/vehiclebuilder/