Open Source Linux Virtual Machine Software
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Virtual Machine Software for Linux
View 23 business solutionsBrowse free open source Virtual Machine software and projects for Linux below. Use the toggles on the left to filter open source Virtual Machine software by OS, license, language, programming language, and project status.
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LXD
Powerful system container and virtual machine manager
LXD is a next-generation system container and virtual machine manager. It offers a unified user experience around full Linux systems running inside containers or virtual machines. LXD is image based and provides images for a wide number of Linux distributions. It provides flexibility and scalability for various use cases, with support for different storage backends and network types and the option to install on hardware ranging from an individual laptop or cloud instance to a full server rack. When using LXD, you can manage your instances (containers and VMs) with a simple command line tool, directly through the REST API or by using third-party tools and integrations. LXD implements a single REST API for both local and remote access. The LXD project was founded and is currently led by Canonical Ltd with contributions from a range of other companies and individual contributors. -
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metasploitable3-ub1404upgraded
An ova file for Metasploitable 3 ubuntu 14.04 virtual machine
An ova file for Metasploitable 3 ubuntu 14.04 virtual machine. Download here https://sourceforge.net/projects/metasploitable3-ub1404upgraded/files/ Upgraded build from this project https://github.com/rapid7/metasploitable3 apt update && apt upgrade ran on it Jan 8, 2022 . ESM repository not added so 169 or so security updates could be made further. Otherwise ubuntu no longer supplies upgrades to 14.04. Hard disk in vmdk format. To add to VirtualBox as a VM. Download Metasploitable3-ub1404.ova Selerct FILE tab, Choose Import Appliance Browse for this ova file on your computer. Modify settings such as RAM as desired, and name of VM, etc Deselect import hdd as vdi, if you want to keep vmdk format Then start the New VM. Username - vagrant;password - vagrant -
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Windows (Dockur)
Windows inside a Docker container
This project makes it surprisingly easy to run a Windows environment inside a Docker container by using a QEMU-based virtual machine under the hood. It provides a turnkey image and a simple set of environment variables so you can select Windows editions, control disk persistence, and access the VM via a web-based VNC console or similar remote viewers. Because the VM is wrapped in Docker, you can treat Windows as a disposable, repeatable service: create, snapshot with volumes, tear down, and rebuild with consistent results. The setup bundles sensible defaults for UEFI/OVMF firmware, virtio devices, and automated first-boot behavior to streamline installation. It’s handy for demos, testing, or hosted tooling that truly requires Windows but where you still want container-style workflows and orchestration. -
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Crosvm
The Chrome OS Virtual Machine Monitor
crosvm (ChromeOS Virtual Machine Monitor) is a secure, lightweight virtual machine monitor built on top of the Linux KVM hypervisor. Developed for ChromeOS, it is designed to isolate and execute Linux and Android guests efficiently while maintaining strong security boundaries. Unlike general-purpose emulators like QEMU, crosvm avoids full hardware emulation and focuses on modern paravirtualized I/O using the virtio standard, reducing complexity and attack surface. Written in Rust, it emphasizes memory safety and modularity, allowing sandboxed device emulation with fine-grained privilege separation. crosvm underpins several ChromeOS subsystems, including Android Runtime for Chrome (ARCVM) and Crostini Linux containers, enabling rich application compatibility within a tightly controlled environment. -
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OpenMausBot
Open Source Alternative to Grok Bot with a virtual machine
OpenMausBot is an open-source, local-first desktop app that presents AI agents as a roster of chat contacts. Each bot can have its own personality, model, conversation memory, computer, and connected apps. Bots can run through locally installed Claude, Codex, or Grok command-line agents while using the user's existing logins and subscriptions. A local harness server owns the agent processes and stores transcripts, keys, and events on the user's machine. Agents can work through cloud Linux desktops, isolated local virtual machines, or supported host-control modes, with risky actions surfaced for user approval. The app also supports connected services, per-bot model switching, separate channels, portable team packages, voice interaction, and live views of agent activity. -
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Quickemu
Quickly create and run optimized Windows, macOS and Linux
Quickly create and run optimized Windows, macOS, and Linux virtual machines. Quickemu is a wrapper for the excellent QEMU that automatically "does the right thing" when creating virtual machines. No requirement for exhaustive configuration options. You decide what operating system you want to run and Quickemu takes care of the rest. The original objective of the project was to enable quick testing of Linux distributions where the virtual machines and their configuration can be stored anywhere (such as external USB storage or your home directory) and no elevated permissions are required to run the virtual machines. -
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Jasmin is a Java Assembler. It takes ASCII descriptions for Java classes, written in a simple assembler-like syntax. It converts them into binary Java .class class files suitable for loading into a Java Virtual Machine implementation.
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Multipass
Multipass orchestrates virtual Ubuntu instances
Multipass is a lightweight VM manager for Linux, Windows and macOS. It's designed for developers who want a fresh Ubuntu environment with a single command. It uses KVM on Linux, Hyper-V on Windows and QEMU on macOS to run the VM with minimal overhead. It can also use VirtualBox on Windows and macOS. Multipass will fetch images for you and keep them up to date. Since it supports metadata for cloud-init, you can simulate a small cloud deployment on your laptop or workstation. -
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macOS (Dockur)
macOS inside a Docker container
dockur/macos packages a macOS virtual machine inside a Docker container using QEMU/KVM, making it easy to spin up a macOS environment on a Linux host. It provides sensible defaults for firmware, disk, and devices, plus a browser-accessible VNC console so you can complete installation and interact with the desktop remotely. Typical inputs—like environment variables and mounted volumes—control edition choice, storage persistence, and resource sizing, which makes runs repeatable and disposable. Because it’s containerized, you can script lifecycle operations, snapshot state via volumes, and integrate the VM into CI or demo setups without a traditional hypervisor UI. Performance depends on host capabilities and whether hardware acceleration is available, but for light GUI tasks, tooling, or sandboxing, it’s surprisingly practical. Users should bring their own valid media and licenses, and be mindful of platform terms and host resource limits. -
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AQEMU
a GUI for virtual machines using QEMU as the backend
AQEMU is a GUI for virtual machines using QEMU as the backend. Support for the KVM accelerator on Linux is provided. The application has a user-friendly interface and allows to set a large number of options. -
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kvm, or kernel-based virtual machine, is a device driver and userspace component for Linux that utilizes hardware virtualization extensions such as Intel's VT to create virtual machines running on a Linux host.
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The open-vm-tools project provides a suite of open source virtualization utilities and drivers to improve the functionality and user experience of virtualization. The project currently runs in guest operating systems under VMware virtualization.
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TiEmu is an emulator of Texas Instruments hand-helds (TI89/92/92+/V200) for Linux & Windows written with GTK. Full-featured with a graphical debugger.
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WinBoat
Run Windows apps on Linux with seamless integration
WinBoat is a free, open-source application that enables Linux users to run Windows software with seamless desktop integration. It uses a containerized virtualization approach to run Windows inside a virtual machine managed through Docker or Podman. Windows applications appear as individual windows within the Linux desktop using FreeRDP and RemoteApp technology. The software provides an intuitive graphical interface that automates Windows installation and configuration. Users can access a complete Windows desktop or launch individual applications according to their needs. It also supports file sharing through home directory mounting, smartcard passthrough, and resource monitoring. WinBoat is currently in beta development and aims to simplify Windows application compatibility on Linux. -
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X11-Basic
A BASIC interpreter and compiler with graphics.
X11-Basic is a dialect of the BASIC programming language with graphics capability that integrates features like shell scripting, cgi-Programming and full graphical visualisation into the easy to learn basic language on modern computers. -
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macOS Simple KVM
Tools to set up a quick macOS VM in QEMU, accelerated by KVM
macOS-Simple-KVM is a project that provides scripts and configuration files to easily set up and run macOS in a virtual machine using QEMU and KVM. It simplifies what is typically a complex process by offering a straightforward approach to creating a macOS VM on Linux systems with hardware virtualization support. The repository includes tools for preparing installation media, configuring virtual hardware, and managing VM launch scripts. By using KVM acceleration, the virtual machine runs with near-native performance, making it useful for testing, development, or personal experimentation. The project also supports GPU passthrough and other advanced configurations for users who want a more optimized macOS VM environment. While primarily intended for educational and testing purposes, it demonstrates how macOS can be virtualized outside of Apple hardware. -
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macintosh.js
A virtual Apple Macintosh with System 8, running in Electron
This is Mac OS 8, running in an Electron app pretending to be a 1991 Macintosh Quadra. It works on macOS, Windows, and Linux. Bear in mind that this is written entirely in JavaScript, so please adjust your expectations. The virtual machine is emulating a 1991 Macintosh Quadra 900 with a Motorola CPU, which Apple used before switching to the PowerPC architecture (Apple/IBM/Motorola) in the mid 1990s. You'll find various games and demos preinstalled, thanks to an old MacWorld Demo CD from 1997. Namely, Oregon Trail, Duke Nukem 3D, Civilization II, Alley 19 Bowling, Damage Incorporated, and Dungeons & Dragons. There are also various apps and trials preinstalled, including Photoshop 3, Premiere 4, Illustrator 5.5, StuffIt Expander, the Apple Web Page Construction Kit, and more. -
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Instructions: After starting this VM, enable the Play Store app, by clicking the Settings -> Apps -> Play Store -> Enable. Then, Launch Play Store App, by clicking the 3 vertical dots icon, at the bottom of desktop. Then download whatever app is needed from the Play Store. Quickly, Cancel any automatic downloads of Play Store app ( itself ), from the notification drawer, as this will prevent it from its future working. Disable the Play Store app, after your other app installs are completed. Increase CPU Count and Memory in VM's Settings, as required, for better performance. If you are very new to virtual machines, then please refer the Wiki Page for its setup instructions, for all major operating systems. Tags: Android Tablet, Android ova, Android Phone, Android OS, Android Operating System, Android Emulator, Android Simulator, android apps, apk, virtual machine
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Bareflank Hypervisor
lightweight hypervisor SDK written in C++
The Bareflank Hypervisor is an open source hypervisor Software Development Toolkit (SDK) for Rust and C++, led by Assured Information Security, Inc. (AIS), that provides the tools needed to rapidly prototype and create your own hypervisor on 64bit versions of Intel and AMD (ARMv8 CPUs, RISC-V and PowerPC also planned). The Bareflank SDK is intended for instructional/research purposes as it only provides enough virtualization support to start/stop a hypervisor. Bareflank can also be used as the foundation to create your own, fully functional hypervisor as it uses the MIT license, and includes 100% unit test coverage and compliance for AUTOSAR. If you are looking for a complete hypervisor (and not an SDK), please see MicroV. If you are looking for a minimal SDK for education or to perform research, this is the project for you. If you are simply looking for a reference hypervisor, please see SimpleVisor. -
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Packer
Build Automated Machine Images
Packer is an open source, automated machine image creation tool. It is designed to create any type of machine image for multiple platforms from a single source configuration. Lightweight yet modern, Packer encourages the use of automated scripts to install and configure the software within your Packer-made images. It is highly performant, able to run on every major operating system and create machine images for several platforms in parallel. Packer supports a great number of platforms out of the box, and support for other platforms can be added through plugins. Any image it creates can also be easily turned into Vagrant boxes. -
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Simplify
Android virtual machine and deobfuscator
Simplify virtually executes an app to understand its behavior and then tries to optimize the code so that it behaves identically but is easier for a human to understand. Each optimization type is simple and generic, so it doesn't matter what specific type of obfuscation is used. Provides a virtual machine sandbox for executing Dalvik methods. After executing a method, it returns a graph containing all possible register and class values for every execution path. It works even if some values are unknown, such as file and network I/O. For example, any if or switch conditional with an unknown value results in both branches being taken. Analyzes the execution graphs from smalivm and applies optimizations such as constant propagation, dead code removal, unreflection, and some peephole optimizations. These are fairly simple, but when applied together repeatedly, they'll decrypt strings, remove reflection, and greatly simplify code. It does not rename methods and classes. -
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Mozart-Oz Programming System
Runtime and development environment of Oz
The Mozart Programming System is an open source implementation of the programming language Oz 3. Oz is a multi-paradigm language that supports declarative programming, object-oriented programming, constraint programming, concurrency and distributed programming as part of a coherent whole. -
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The PHP script engine for Java. --- Run PHP applications within any J2EE server or servlet engine and/or connect script engines like PHP with Java or .NET back ends efficiently.
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Ring
Simple and flexible programming language for applications development
The Ring is a practical general-purpose multi-paradigm language. The supported programming paradigms are imperative, procedural, object-oriented, declarative using nested structures, functional, meta programming and natural programming. The language is portable (MS-DOS, Windows, Linux, macOS, Android, WebAssembly, Microcontrollers, etc.) and can be used to create Console, GUI, Web, Games and Mobile applications. The language is designed to be simple, small and flexible. Ring is distributed as a Free-Open Source project under the MIT License.
