TigerVNC is an open source Virtual Network Computing (VNC) server and client software, started as a fork of TightVNC in 2009. The client supports Windows, Linux and macOS. The server supports Linux. There is no server for macOS and the Windows server as of release 1.11.0 is no longer maintained. TigerVNC has a different feature set than TightVNC, despite its origins. For example, TigerVNC adds encryption for all supported operating systems and not just Linux. Conversely, TightVNC has features that TigerVNC doesn't have, such as file transfers.