GNU GRUB
GNU GRUB: A broad, free boot manager for BIOS, UEFI, multiboot, and chain-loading setups. Ranked #5 of 29 in Boot Manager Software by our editors (7.9/10); pricing: Free plan; best for free open-source general-purpose boot management.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forFree open-source general-purpose boot management
- Free planYes
- Paid fromFree
- Operating systemsMultiplatform
- Facts checked21 Sep 2026
Where it wins
- Supports both BIOS and EFI/UEFI boot environments
- Loads multiple kernels and chain-loads other boot loaders
- Offers configurable menus, entry editing, and a command line
Where it doesn't
- Configuration depends on firmware mode, architecture, and setup
- It is a bootloader rather than a conventional desktop application
- Windows support is provided through chain-loading other boot loaders
Our verdict on GNU GRUB
GNU GRUB is a free, open-source boot loader for managing startup across multiple operating systems. It is intended for users who need to load operating-system kernels, select boot entries, or chain-load another boot loader. GNU/Linux is a common use case, while chain-loading supports systems such as Windows. Its support for BIOS and EFI/UEFI environments makes it suitable for general-purpose boot management across different firmware configurations.
The standout strength is the range of boot controls in one tool. GRUB can load kernels and modules, present a configurable menu with timeout settings, edit boot entries from the menu, and provide an interactive command-line interface. It also includes a GRUB installation utility. Multiboot kernel loading and chain-loading extend its role beyond selecting a single operating system, making it useful where several kernels or boot loaders need to coexist.
GRUB is distributed under the GNU General Public License and does not require a paid tier. Its breadth makes it a strong choice for users seeking free, open-source control over BIOS or UEFI boot flows. It is less suitable for anyone expecting a conventional desktop application with a graphical setup experience, because it is a bootloader rather than a desktop application. Compatibility and behavior depend on firmware mode, architecture, and configuration, so users with a narrowly defined or highly managed boot environment may prefer a tool designed specifically for that setup.
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GNU GRUB pricing
GNU GRUB fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Operating systems | Multiplatform |
| UEFI support | Yes |
| BIOS support | Yes |
| Multiboot support | Yes |
| Boot-entry editing | Yes |
| Boot repair | Not verified |
| Boot-menu customization | Yes |
| Deployment | Self-hosted |
| Platforms | Linux, Windows |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | gnu.org |
| Facts checked | 21 Sep 2026 |
Alternatives to GNU GRUB
- EasyUEFIA focused Windows utility for UEFI boot management and EFI-partition repair.8.9
- Clover BootloaderA free, highly configurable boot manager for multiboot systems.8.8
- EasyBCDA capable Windows boot manager for editing entries, repairing BCD, and creating multiboot setups.8.3
See all GNU GRUB alternatives →
GNU GRUB vs the competition
- GNU GRUB vs EasyUEFI
- GNU GRUB vs Clover Bootloader
- GNU GRUB vs EasyBCD
- GNU GRUB vs GitHub CodeQL
- GNU GRUB vs Boot-Repair
- GNU GRUB vs systemd-boot
Compare GNU GRUB with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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