Download ButConnect

The ButConnect remote access and support software tool is available free of charge. You always get the unrestricted version.

An installation is not required — after unpacking the downloaded package, ButConnect is ready for use.

When a new version is available, it's not necessary to download the full ButConnect package again and replace the files manually. Instead, you can use its (auto) update feature.

For an overview of new features, please take a look at the version history.


ButConnect is a portable and cross-platform software.

However, depending on your platform there are two different packages available: a full package (“bc”) with ButConnect and UltraVNC server & viewer for Windows and a minimal package with ButConnect only (“bcmin”) for all other systems.

Full Package (including UltraVNC server and viewer, for Windows): Minimal Package (for Linux, macOS, BSD, Solaris, Raspberry Pi and Others):


On Windows the .NET Framework 4.0 or newer needs to be present. This is already the case in Windows 7 SP1 or newer. On other systems Mono 2.11 or newer is required.