Finnbarr P. Murphy has a set of UEFI Utilities on Github. He’s recently made two versions of it, UEFI-Utilities-2016:
Note that the code in this repository is quite old. Many of these utilitoes will only build against the GNU-EFI library and run under UEFI Shell v1.0. See my UEFI-Utilities-2016 repository for utilities that will build under UDK2015 and run under UEFI Shell v2.0.