Kaffe - Not Java

•    Java

Kaffe is a clean room implementation of the Java virtual machine, plus the associated class libraries needed to provide a Java runtime environment.

GNU Classpath - Mother of most of the VM

•    C

GNU Classpath provides core class libraries for use with virtual machines and compilers for the java programming language. GNU Classpath 1.0 will be fully compatible with the 1.1 and 1.2 API specifications, in addition to having significant compatibility with the 1.3, 1.4, 1.5 and 1.6 APIs.

Harmony - Open Source Java SE

•    Java

Apache Harmony is a modular Java runtime with class libraries and associated tools. One of the goals of the Harmony project is to create a design modular enough so that parts of the VM can be implemented in different languages. This project started in 2005 and it is under active development.

gasm - An Experimental Wasm Virtual Machine for Gophers

•    Go

A minimal implementation of v1 WASM spec compatible virtual machine purely written in go. The vm can be embedded in your go program without any dependency like cgo, and enables Gophers to write wasm host environments easily. The vm should be used only for providing sandbox environments embedded in your Go program since we have not implemented validation of wasm binary.

Libretto - Golang library to create Virtual Machines (VMs) on any cloud

Libretto is a Golang library to create Virtual Machines (VM) on any cloud and Virtual Machine hosting platforms such as AWS, Azure, OpenStack, vSphere, VMware Workstation/Fusion, Exoscale or VirtualBox. Different providers have different utilities and API interfaces to achieve that, but the abstractions of their interfaces are quite similar.

open-vm-tools - Official repository of VMware open-vm-tools project

•    C

open-vm-tools is a set of services and modules that enable several features in VMware products for better management of, and seamless user interactions with, guests. It includes kernel modules for enhancing the performance of virtual machines running Linux or other VMware supported Unix like guest operating systems.

vm - Package and Run Virtual Machines as Docker Containers

•    Python

RancherVM allows you to create a special kind of containers called VM Containers. A VM container looks and feels like a regular container. It can be created from Dockerfile, distributed using DockerHub, managed using docker command line, and networked together using links and port bindings. Inside each VM container, however, is a virtual machine instance. You can package any QEMU/KVM image as RancherVM containers.RancherVM additionally comes with a management container that provides a web UI for managing virtual machines and accessing the VNC console.

rvmi - rVMI - A New Paradigm For Full System Analysis

•    C

rVMI is a debugger on steroids. It leverages Virtual Machine Introspection (VMI) and memory forensics to provide full system analysis. This means that an analyst can inspect userspace processes, kernel drivers, and pre-boot environments in a single tool. It was specifically designed for interactive dynamic malware analysis. rVMI isolates itself from the malware by placing its interactive debugging environment out of the virtual machine (VM) onto the hypervisor-level. Through the use of VMI the analyst still has full control of the VM, which allows her to pause the VM at any point in time and to use typical debugging features such as breakpoints and watchpoints. In addition, rVMI provides access to the entire Rekall feature set, which enables an analyst to inspect the kernel and its data structures with ease.

kernel virtual machine

•    C

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.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko. Using KVM, one can run multiple virtual machines running unmodified Linux or Windows images. Each virtual machine has private virtualized hardware: a network card, disk, graphics adapter, etc.

JPHP - An alternative to Zend PHP, like JRuby and Jython only for PHP

•    Java

JPHP is a new implementation for PHP which uses the Java VM. It supports many features of the PHP language (7.0+).How does it work? JPHP is a compiler like javac, it compiles php sources to JVM bytecode and then can execute the result on the Java VM. JPHP is not a replacement for the Zend PHP engine or Facebook HHVM.

Packer - Build Automated Machine Images

•    Go

Packer is a tool for building identical machine images for multiple platforms from a single source configuration. It is lightweight, runs on every major operating system, and is highly performant, creating machine images for multiple platforms in parallel.

Cacaovm - Just-In-Time (JIT) Compiler

•    Java

cacaovm is a Java Virtual Machine (JVM) which uses Just-In-Time (JIT) compilation to execute Java methods natively. cacaovm uses GNU Classpath or OpenJDK or phoneME as Java runtime library. The cacaovm project started as a research JVM to explore new implementation techniques. The first version for the Alpha was released in February 1997 as a binary.

JC Virtual Machine - Converts Java to C

•    Java

JC Virtual machine converts Java class files to C source code. It could also compiles with GCC and loads them with built-in ELF loader. Additional to that, JC provides a complete Java runtime with optimization to increase performance.

old-vm - (OBSOLETE) Package and Run Virtual Machines as Docker Containers

•    Go

Package and run KVM images as Kubernetes pods, run at scale. RancherVM allows you to create VMs that run inside of Kubernetes pods, called VM Pods. A VM pod looks and feels like a regular pod. Inside of each VM pod, however, is a container running a virtual machine instance. You can package any QEMU/KVM image as a Docker image, distribute it using any Docker registry such as DockerHub, and run it on RancherVM.

Firecracker - Secure and fast microVMs for serverless computing

•    Rust

Firecracker is an open source virtualization technology that is purpose-built for creating and managing secure, multi-tenant container and function-based services that provide serverless operational models. Firecracker runs workloads in lightweight virtual machines, called microVMs, which combine the security and isolation properties provided by hardware virtualization technology with the speed and flexibility of containers.

Plex86 - An x86 Virtual Machine

•    C

Plex86 is an OSS virtual machine project for x86. It can be used on its own to run Linux VMs using lightweight VM technology, or in conjunction with the bochs emulator as an accelerator to run non VM-friendly OSes.

f/VM (Free Virtual Machine)

•    C

A virtual machine inspired by the concept of IBM's z/VM. The goal is to create a secure, fast and reliable server platform with focus on security with the ability to nest more VMs.

Java SE - Creator of Java

•    Java

Java Standard Edition provides Java development kit and Runtime to develop and deploy Java programs. Developed by Sun and take over by Oracle. It has support for different environments like Desktop, Embedded, Web, Realtime etc.

Graal - High-Performance Polyglot VM

•    Java

GraalVM is a universal virtual machine for running applications written in JavaScript, Python 3, Ruby, R, JVM-based languages like Java, Scala, Kotlin, and LLVM-based languages such as C and C++. GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime. It can run either standalone or in the context of OpenJDK, Node.js, Oracle Database, or MySQL.

ThreatPursuit-VM - Threat Pursuit Virtual Machine (VM): A fully customizable, open-sourced Windows-based distribution focused on threat intelligence analysis and hunting designed for intel and malware analysts as well as threat hunters to get up and running quickly

•    PowerShell

Using Oracle Virtualbox as the virtualisation software running from a Windows 10 physical host, will cause issues with the Docker install. There is currently no workaround other than using VMware Player or VMware Workstation.