4b2b Desktop

Download for Windows ┬╖ Download for macOS

Download for Windows

Installer тАФ updates itself. If Windows warns you on first launch, choose to run it anyway.

Portable ZIP тАФ Portable ZIP тАФ unpack it and run 4b2b.exe, nothing gets installed

Download for macOS

For Apple Silicon Macs (M1 and newer). On first launch macOS asks for confirmation: System Settings тЖТ Privacy & Security тЖТ Open Anyway.

Intel Mac тАФ For Macs with an Intel processor