UEFITools
UEFITool_0.3.0 win
UEFITool_0.20.6 win
UEFITool 0.17.4 win
UEFITool_0.21.4 win
UEFITool 0.21.4 OSX
UEFITool 0.21.4 OSX

UEFIPatch can be used for automatic application of FFS file patches without using a GUI.
UEFIPatch_0.3.8_win.zip
UEFIPatch_0.3.8_osx.zip

UEFIExtract can be used to extract UEFI image files into a directory tree without using a GUI.
UEFIExtract_0.10.5_win.zip
UEFIExtract_0.10.5_osx.zip

InsydeImageExtractor can be used to extract the BIOS image from the InsydeFlash executable.
extractor_v0.2_win
extractor_v0.2_osx

UEFITool 0.21.4 OSX
UEFITool ver 5.6.3.exe
UEFITool_0.4.0.exe
UEFITool_0.26.exe
UEFITool_0.28.exe
UEFITool_NE_A19.exe