Boot Managers

GNU GRUB is a multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.

EasyBCD is NeoSmart Technologies multiple award-winning answer to tweaking Windows bootloader. With EasyBCD, almost anything is possible, e.g. to boot a Win7-VHD-image. Setting up and configuring Windows boot entries is simple, and there is no easier way to quickly boot right...

rEFInd is a fork of the rEFIt boot manager for computers based on the Extensible Firmware Interface (EFI) and Unified EFI (UEFI). Like rEFIt, rEFInd is a boot manager, meaning that it presents a menu of options to the user when the computer...

OpenCore is an open-sourced tool designed to prepare a system for macOS booting and has been architected to alleviate many of the constraints imposed by its alternatives like Clover(these tools are sometimes referred to as "boot loaders").

Experience macOS just like before.

EasyUEFI owns comprehensive EFI/UEFI boot option management functions, such as create, delete, edit, clean up, backup and restore EFI/UEFI boot options, specifies an one-time boot entry for the next restart, or change EFI/UEFI boot order, all these operations done under Windows...

Libreboot is a free software project based on coreboot, aimed at replacing the proprietary BIOS firmware contained by most computers. Libreboot is a lightweight system designed to perform only the minimum number of tasks necessary to load and...

Limine is an advanced x86/x86_64 BIOS and UEFI bootloader that supports modern PC features such as Long Mode, 5-level paging, multi-core startup, and more thanks to the stivale and stivale2 boot protocols.

Grub Customizer is a graphical interface to configure the GRUB2/BURG settings and menuentries.

Safely dual boot Windows and Linux without touching the Windows MBR.

Grub2Win installs to Windows 8, Windows 7, XP, 2000 or Vista. It boots native, open source GNU grub version 2.00 code. Everything is contained in one 7 MB directory on your Windows C: drive.

The simple Windows.

Visual BCD Editor - advanced GUI version of bcdedit utility. Automatic boot loader creation - Windows 7|Vista|XP|VHD. Fix boot manager and dual boot problems.

Bootice - utility to modify or backup/restore your MBR (Master Boot Record) or PBR (Partition Boot Record).

iReboot is NeoSmart Technologies' simple yet effective reboot helper tool. iReboot sits in your taskbar at startup (only taking up 400KB of memory!) and lets you choose which operating system you want to reboot into.

The "Universal Bootloader" ("Das U-Boot"), commonly shortened to U-Boot, is an open source primary bootloader for embedded systems.

Quibble is the custom Windows bootloader - an open-source reimplementation of the files bootmgfw.efi and winload.efi, able to boot versions of Windows from XP to Windows 10 22H2. Unlike the official bootloader, it is extensible, allowing you to boot from other filesystems than...