GURPS Character Sheet (GCS) is a stand-alone, interactive, character sheet editor that allows you to build characters for the GURPS 4th Edition roleplaying game system. This site is the home for GCS, which was written by Richard A. Wilkes.
Please join us on the GURPS Discord for discussion about GCS — specifically the #apps and #apps-dev channels. You can find me there as Rich (GCS).
Trying to learn how to use GCS? Some short blog articles might help: