MobaXterm is a free X server for Windows with tabbed SSH terminal, telnet, RDP, VNC, Xdmcp, Mosh and X11-forwarding.

NoMachine is a remote connectivity and network computing software.

LXQt is a bundle of software packages under development, with the aim of providing a complete desktop environment.

MacPorts (DarwinPorts) is a package management system that simplifies the installation of software on the macOS and Darwin operating systems.

LXDE (abbreviation for Lightweight X11 Desktop Environment) is a free desktop environment with comparatively low resource requirements.

X2Go is an open source remote desktop software for Linux that uses the NX technology protocol.

i3 is a tiling window manager, completely written from scratch. The target platforms are GNU/Linux and BSD operating systems, our code is Free and Open Source…

awesome is a highly configurable, next generation framework window manager for X.