kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Systemd-Boot
GRUB
Clover EFI bootloader
LILO Boot Loader
Microsoft Expression Web
Apple
U-Boot
Clover
kdiff3
Systemd-BootBeyond Compare - Beyond Compare allows you to compare files and folders.
GRUB - Multiboot boot loader
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Clover EFI bootloader - This is EFI-based bootloader for BIOS-based computers created as a replacement to EDK2/Duet...
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
LILO Boot Loader - LILO stands for Linux Loader, is a boot loader tool that is used to load Linux OS into memory.