GBA Multiboot

Load homebrew games and development tools onto your Game Boy Advance without a flash cart.

Web client: multiboot.gblink.io

Supported games#

What you can do#

• Send multiboot homebrew programs to your GBA over the link cable
• Test homebrew without purchasing a flash cart
• Load development builds quickly during development

Requirements#

• Game Boy Advance (no cartridge needed for multiboot)
• GB-Link adapter with GBA link cable (master connector)
• Chrome or Firefox

How to use#

1. Power on your GBA without a cartridge inserted (or with multiboot-compatible setup).
2. Open multiboot.gblink.io and connect your adapter.
3. Choose a homebrew file and follow the transfer prompts.

Tips#

• Multiboot transfers a small program into GBA RAM — the program runs until power off.
• Not all homebrew is multiboot-compatible; check the homebrew’s documentation.
• This is a great tool for homebrew developers testing builds quickly.