Chameleon Bootloader!

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 into Linux, Mac OS X, or BSD straight from the Windows Vista bootloader - on the fly, no expert knowledge needed!

The PLoP Boot Manager is a small program to boot different operating systems. You can boot the operating systems from harddisk, floppy, CD/DVD or from USB. You can start the boot manager from floppy, CD, network and there are many more ways to start the boot manager. You can install the boot manager on your harddisk. There is no extra partition required for the boot manager.

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

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.

coreboot (formerly known as LinuxBIOS) is a free software project aimed at replacing the proprietary BIOS firmware found in most computers with a lightweight system designed to perform only the minimum of tasks necessary to load and run a modern 32-bit or 64-bit operating system.

burg is a brand-new boot loader based on GRUB . It uses a new object format which allows it to be built in a wider range of OS, including Linux/Windows/OSX/FreeBSD, etc. It also has a highly configurable menu system which works in both text and graphic mode.

BootIt Bare Metal is a boot manager and partition manager software utility. Whither you want to do non-destructive repartitioning or boot multiple operating systems, this is the product for you.

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

OSL2000 is an advanced multi boot manager. Using OSL2000 boot manager, you can directly install, boot and manage upto 100 independent OSs in your computer.

A boot editor for the Windows 7/Vista bootloader. Takes the pain out of BCDEDIT.

Written in C++ and licensed under GNU GPL, XOSL (eXtended Operating System Loader) is a user-friendly, window-based graphical boot manager handling large disks and over 30 different operating systems.

GRUB for DOS is an universal boot loader based on GNU GRUB. It can boot various OSes (some directly, some using their standard boot managers) on different media (HDD, CD/DVD, external USB devices, etc).

rEFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. It also provides an easy way to enter and explore the EFI pre-boot environment.

Used to edit boot configuration data on Windows systems. Predecessor of bcdedit. Found on Windows XP and prior versions.