Top MultiSystem Alternative Tools for Creating Bootable USB Drives
MultiSystem, a powerful tool by LiveUSB.info, is well-known in the Linux community for creating custom multiboot USB flash drives using Grub2. Similar to Windows-based MultiBootISOs, it's a go-to for Linux users wanting to consolidate their favorite bootable live Linux distributions onto a single USB. However, if you're looking for different features, broader platform support, or simply exploring other options, there are many excellent MultiSystem alternative tools available to help you create bootable USBs with ease.
Top MultiSystem Alternatives
Whether you need a simple, single-purpose burner or a comprehensive multiboot creator, this list provides a range of MultiSystem alternatives, catering to various operating systems and feature requirements. Dive in to find the perfect tool for your bootable USB needs!

Rufus
Rufus is a free and open-source utility for Windows and PortableApps.com that makes it easy to format and create bootable USB flash drives. It's an excellent MultiSystem alternative for Windows users, offering features like creating bootable USBs, Windows To Go, burning ISOs, and supporting both BIOS and UEFI bootable drives with optimal performance.

balenaEtcher
balenaEtcher is a free and open-source image burner available for Mac, Windows, and Linux, making it a versatile MultiSystem alternative. It simplifies the process of burning images to USB and SD cards, boasting a user-friendly Material Design GUI, validated burning, and support for creating various bootable images with ease.

UNetbootin
UNetbootin is a cross-platform (Mac, Windows, Linux, PortableApps.com), free, and open-source tool that creates bootable Live USB drives. As a MultiSystem alternative, it stands out with its built-in downloader for Linux ISO images, persistent Linux support, and the ability to handle multiple bootable distributions, making it ideal for Linux enthusiasts.

YUMI
YUMI (Your Universal Multiboot Installer) is a free and open-source successor to MultiBootISOs, primarily for Windows but runnable with Wine. It's an excellent MultiSystem alternative for creating a multiboot USB flash drive containing multiple operating systems, offering persistent storage, UEFI support, and the ability to install to internal hard drives/SSDs.

Universal USB Installer
Universal USB Installer is a free and open-source Live Linux USB Creator for Windows. This MultiSystem alternative allows users to easily select and put various Linux distributions onto a USB flash drive. Its features include portable Linux, persistent Linux, and the convenience of not needing to format the drive initially.

LinuxLive USB Creator
LinuxLive USB Creator (LiLi USB Creator) is a free, open-source Windows software for creating bootable Live USB keys with Linux. As a MultiSystem alternative, it offers unique features like virtualization to run Linux directly from Windows, persistent storage, and support for creating UEFI bootable drives.

MultiBootUSB
MultiBootUSB is a cross-platform (Windows, Linux), free, and open-source utility for creating live Linux distro multi-boot USBs non-destructively. This MultiSystem alternative offers both a GUI and command-line interface, enabling users to easily manage multiple operating systems and install Syslinux for broader compatibility.

WinSetupFromUSB
WinSetupFromUSB is a free Windows program designed to prepare multiboot USB flash drives for installing various Windows versions (since 2000/XP) and booting different Linux and *BSD distributions. It's a robust MultiSystem alternative that supports UEFI, offers a portable version, and includes a preinstalled environment builder.

AIO Boot
AIO Boot is a free Windows-based all-in-one bootable software for USB and HDD, making it a comprehensive MultiSystem alternative. It supports booting through Grub2, Grub4Dos, Clover, and rEFInd, allowing users to create powerful multiboot USB drives with ease.

WoeUSB
WoeUSB is a simple, free, and open-source Linux tool that enables you to create Windows USB installers from an ISO image or a real DVD. As a MultiSystem alternative focused on Windows installations, it provides both a GUI and command-line interface, and supports creating UEFI bootable drives for Windows.
With so many powerful options available, you're sure to find a MultiSystem alternative that perfectly fits your specific needs for creating bootable USB drives. Explore these tools and choose the best one to simplify your operating system installations and live environments.