GRUB - Multiboot boot loader
Grub2Win - Safely dual boot Windows and Linux without touching the Windows MBR.
EasyUEFI - Manage EFI/UEFI Boot Options & Manage EFI System Partitions & Fix EFI/UEFI Boot Issues
Clover EFI bootloader - This is EFI-based bootloader for BIOS-based computers created as a replacement to EDK2/Duet...
Visual BCD Editor - Visual BCD Editor - advanced GUI version of bcdedit utility. for Windows 7/8/10 and Vista
Grub Customizer - Grub Customizer is a graphical interface to configure the GRUB2/BURG settings and menuentries.