MirageOS is a library operating system that constructs unikernels

A minimal Linux that runs as a coreboot or LinuxBoot ROM payload to provide a secure, flexible boot environment for laptops, workstations and servers.

DRAKVUF Black-box Binary Analysis

The Haskell Lightweight Virtual Machine (HaLVM): GHC running on Xen

Yet one more wrapper around jail, bhyve, QEMU and XEN

Ganeti is a virtual machine cluster management tool built on top of existing virtualization technologies such as Xen or KVM and other open source software.

Kernel Fuzzer for Xen Project (KF/x) - Hypervisor-based fuzzing using Xen VM forking, VMI & AFL

An open-source cloud operating system management platform, online demo: https://door.casvisor.com

Bash script to build local virtual machines using KVM/libvirt and cloud-init.

krata is a Xen control plane in Rust.

Fast backups for logical volumes & disk images

ERIKA Enterprise v3 RTOS

LibVMI-based debug server, implemented in Python. Building a guest aware, stealth and agentless full-system debugger

libvirt bindings for google v8 javascript engine (nodejs addon)

OpenUDS Is an Open Source Source multiplatform connection broker, created by Spanish Company ​Virtualcable S.L.U. and released under Open Source with the help of several Spanish Universities.

Xen Orchestra provider for Terraform

The Click modular router: fast modular packet processing and analysis

Hypervisor-Level Debugger based on Radare2 / LibVMI, using VMI IO and debug plugins

Rust-based Unikernel

Karesansui is an open-source virtualization management application made in Japan.