HTML5 VNC client
VNC, or Virtual Network Computing is a tool for administrators to connect to the OS desktop of a server remotely. VNC transmits the view from the server screen and allows managing the remote server by using a keyboard and a mouse, as if the server would be located in one room with the administrator.
VMmanager uses noVNC, an HTML5 VNC client. By using noVNC, a user can connect to the server remotely without installation of any specific client. All the user has to do is open a link in a browser, enter the password, and start using the operating system of a server.
If connection to QEMU VNC remote server is needed, it is possible to use RealVNC Viewer.