
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
EasyUEFI
EasyBCD
GRUB
Grub2Win
PLoP Boot Manager
Libreboot
Grub Customizer
BootIt Bare Metal
kdiff3
EasyUEFIEasyUEFI is recommended for users who need to manage multiple operating systems and configure boot options on UEFI-supported machines. It is especially beneficial for IT professionals, system administrators, and advanced users who frequently deal with boot issues or need to perform complex boot management tasks.
Beyond Compare - Beyond Compare allows you to compare files and folders.
EasyBCD - EasyBCD is NeoSmart Technologies multiple award-winning answer to tweaking Windows bootloader.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
GRUB - Multiboot boot loader
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Grub2Win - Safely dual boot Windows and Linux without touching the Windows MBR.