LXC Linux Containers 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 five alternatives to LXC Linux Containers for a variety of platforms, including Linux, Self-Hosted solutions, FreeNAS, Online / Web-based and Android. The best alternative is Docker, which is both free and Open Source. Other great apps like LXC Linux Containers are KVM (Kernel-based Virtual Machine) (Free, Open Source), Xen (Free, Open Source), containerd (Free, Open Source) and OpenVZ (Free, Open Source).
KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.
Xen.org, home of the Xen hypervisor, the powerful open source industry standard for virtualization. It is a native (bare-metal) hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently.