Linux Containers (LXC) is described as 'Containers which offer an environment as close as possible as the one you'd get from a VM but without the overhead that comes with running a separate kernel and simulating all the hardware' and is a Virtualization tool in the network & admin category. There are more than 10 alternatives to Linux Containers (LXC) for a variety of platforms, including Linux, Self-Hosted, Mac, Windows and Web-based apps. The best Linux Containers (LXC) alternative is Docker, which is both free and Open Source. Other great apps like Linux Containers (LXC) are KVM (Kernel-based Virtual Machine), Distrobox, Xen and BoxBuddy.
LXC is system container, while Docker is application container,... they are two totally different things,..