TigerVNC is an advanced VNC implementation. It is based on the fourth generation of VNC. TigerVNC also includes features from the TightVNC and TurboVNC projects. This includes accelerated JPEG compression. TigerVNC supports the latest X.Org X server.



































































On December 21, 2010, NoMachine announced that NX 4.0 would be closed-source. X2go is free and open source. and offer the same options that nomachine gave and more, most important are: