Trinity Rescue Kit (also known as TRK) is a free Live CD Linux distribution based on Mandriva Linux, aimed specifically at offline operations for Windows and Linux systems such as rescue, repair, password resets and disk cloning. Trinity Rescue Kit is bootable from a CD, USB media or a network using PXE. Documentation for TRK exists both on the website, as well as in the console by using the command "trkhelp -l -t". Trinity Rescue Kit omits the standard Linux manual command in order to conserve space. In addition, there are tools to migrate TRK from an ISO image to a bootable USB device and vice versa.

Trinity Rescue Kit has a graphical startup menu based on SYSLINUX and vesamenu32 which is used to select boot options.