Open Source TightVNC Alternatives

Remmina is a remote desktop client written in GTK+. Remmina primarily targets system administrators and travelers that need to work with computers remotely in front of either large monitors or tiny netbooks.

UltraVNC is easy to use and free software that can display the screen of another computer (via the Internet or a local network) on your own screen. The program allows you to use your mouse and keyboard to control the other computer remotely.

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.

The remote desktop software that is similar to TeamViewer and AnyDesk. Clients are open source, though server is not.

Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC and RDP. We call it clientless because no plugins or client software are required.

Remotely is a free and open-source remote desktop, remote scripting, and rich auto-complete to maximize your IT support efficiency.

RPort is an all-in-one remote management suite. It manages Windows, Linux, desktops and servers, and any IoT device from one central console.

Aspia is a free and open source application for remote computer management.

A VNC/SSH Client for the GNOME Desktop.

KRDC is the KDE Remote Desktop Client. KRDC was overhauled as part of the Google Summer of Code (SoC) 2007 by Urs Wolfer and other developers to be included in the KDE 4.0.