Browse free open source Emulators and projects for Windows below. Use the toggles on the left to filter open source Emulators by OS, license, language, programming language, and project status.

  • Passwordless Authentication and Passwordless Security Icon
    Passwordless Authentication and Passwordless Security

    Identity is everything. Protect it with Duo.

    It’s no secret — passwords can be a real headache, both for the people who use them and the people who manage them. Over time, we’ve created hundreds of passwords, it’s easy to lose track of them and they’re easily compromised. Fortunately, passwordless authentication is becoming a feasible reality for many businesses. Duo can help you get there.
    Get a Free Trial
  • Comprehensive Cybersecurity to Safeguard Your Organization | SOCRadar Icon
    Comprehensive Cybersecurity to Safeguard Your Organization | SOCRadar

    See what hackers already know about your organization – and stop them from getting in.

    Protect your organization from cyber threats with SOCRadar’s cutting-edge threat intelligence. Gain 360° visibility into your digital assets, monitor the dark web, and stay ahead of hackers with real-time insights. Start for free and transform your cybersecurity today.
    Free Trial
  • 1
    GNS3

    GNS3

    An advanced network simulator to design and configure virtual networks

    Build, Design and Test your network in a risk-free virtual environment and access the largest networking community to help. Whether you are studying for your first networking exam or building out a state-wide telecommunications network, GNS3 offers an easy way to design and build networks of any size without the need for hardware.
    Leader badge
    Downloads: 4,779 This Week
    Last Update:
    See Project
  • 2
    PrimeOS
    PrimeOS, the ideal Android based OS for mobile games on PC/Laptop.
    Leader badge
    Downloads: 14,308 This Week
    Last Update:
    See Project
  • 3
    Null-modem emulator

    Null-modem emulator

    The virtual serial port driver for Windows.

    The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. You can create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. The HUB for communications (hub4com) allows to receive data and signals from one COM or TCP port, modify and send it to a number of other COM or TCP ports and vice versa.
    Leader badge
    Downloads: 3,478 This Week
    Last Update:
    See Project
  • 4
    VICE

    VICE

    Versatile Commodore Emulator

    VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.
    Leader badge
    Downloads: 2,502 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 by Okta Icon
    Our Free Plans just got better! | Auth0 by Okta

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 5
    Nestopia
    A portable and cycle-accurate NES/Famicom emulator written in C++
    Leader badge
    Downloads: 2,695 This Week
    Last Update:
    See Project
  • 6
    DeSmuME

    DeSmuME

    DeSmuME is a Nintendo DS emulator

    DeSmuME is the most seasoned open source Nintendo DS emulator. It sports tools designed for hackers, speedrunners, youtubers, and casual gamers. Homebrew programs are supported and can even be debugged through GDB. The Windows and OSX versions are both relatively feature rich, and there is a small universe of forks and mods that add even more features for casual gaming. DeSmuME is the origin of RetroArch and OpenEmu Nintendo DS support and is used by several mobile Nintendo DS emulators, with the notable exception of DraStic. DeSmuME's source code is now hosted at https://github.com/TASVideos/desmume/ win32 autobuilds @ https://ci.appveyor.com/project/zeromus/desmume/build/artifacts
    Leader badge
    Downloads: 1,925 This Week
    Last Update:
    See Project
  • 7
    Bochs x86 PC emulator
    Bochs is a portable x86 PC emulation software package that emulates enough of the x86 CPU, related AT hardware, and BIOS to run Windows, Linux, *BSD, Minix, and other OS's, all on your workstation.
    Leader badge
    Downloads: 1,472 This Week
    Last Update:
    See Project
  • 8
    D-Fend Reloaded

    D-Fend Reloaded

    A graphical environment for DOSBox

    D-Fend Reloaded is a graphical environment for DOSBox. D-Fend Reloaded is a successor of the discontinued D-Fend. Both environments look alike and D-Fend Reloaded contains all features of D-Fend. Even the D-Fend config files can be used.
    Leader badge
    Downloads: 831 This Week
    Last Update:
    See Project
  • 9
    Locale Emulator

    Locale Emulator

    Yet another system region and language simulator

    Locale Emulator is a tool similar to AppLocale and NTLEA, providing a simulation function that can make an application recognize your OS as in a language other than the real one. It is quite useful when you are trying to play country-specific games. Locale Emulator is compatible with the following systems, both 32 and 64-bit, Windows 7 with Service Pack 1, Windows 8.1, and Windows 10. Locale Emulator supports 32-bit executables running on both 32-bit or 64-bit systems. For example, if you are using 64-bit WinRAR, you will not see the context menu on a RAR file unless you swapped 64-bit WinRAR with the 32-bit version. Clone the repo using Git, install Microsoft Visual Studio 2015 / 2017, open LocaleEmulator.sln, perform build action, clone and build the core libraries, and copy LoaderDll.dll and LocaleEmulator.dll from Locale-Emulator-Core to Locale-Emulator build folder.
    Downloads: 178 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 by Okta Icon
    Our Free Plans just got better! | Auth0 by Okta

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 10
    Citra

    Citra

    A Nintendo 3DS Emulator

    Citra is an experimental open-source Nintendo 3DS emulator/debugger written in C++. It is written with portability in mind, with builds actively maintained for Windows, Linux and macOS. Citra emulates a subset of 3DS hardware and therefore is useful for running/debugging homebrew applications, and it is also able to run many commercial games! Some of these do not run at a playable state, but we are working every day to advance the project forward. (Playable here means compatibility of at least "Okay" on our game compatibility list.) Citra is licensed under the GPLv2 (or any later version). Refer to the license.txt file included. Please read the FAQ before getting started with the project. If you want to contribute please take a look at the Contributor's Guide and Developer Information. You should also contact any of the developers in the forum in order to know about the current state of the emulator because the TODO list isn't maintained anymore.
    Downloads: 149 This Week
    Last Update:
    See Project
  • 11
    The Free Unix Spectrum Emulator (Fuse): an emulator of the 1980s home computer and various clones for Unix, Mac OS X and Windows.
    Leader badge
    Downloads: 566 This Week
    Last Update:
    See Project
  • 12
    ZSNES is a SNES/Super Famicom emulator for x86 computers. It runs on Windows, MS-DOS and Linux/FreeBSD and supports mode 7, sound, Super FX, and a lot more.
    Leader badge
    Downloads: 451 This Week
    Last Update:
    See Project
  • 13
    VBA-M

    VBA-M

    A merge of the original Visual Boy Advance forks

    The continuing development of the legendary VBA gameboy advance emulator.
    Leader badge
    Downloads: 359 This Week
    Last Update:
    See Project
  • 14

    VisualBoyAdvance

    An emulator for Gameboy and GameboyAdvance systems

    An emulator for Gameboy and GameboyAdvance systems.
    Leader badge
    Downloads: 419 This Week
    Last Update:
    See Project
  • 15
    GPCS4

    GPCS4

    A work-in-progress PlayStation 4 emulator

    A PlayStation 4 emulator which was just started. A project done for fun, and for technical research. The only reason I have started this project is for learning 3D graphics. It's not intended to become a serious application. Support simple compute shader, compute ring, cube maps. For more details you could join our discord server to contact me, or if you are used to Tencent QQ/TIM, just join our group. There you can get more resources which are useful for contributing. To run or develop GPCS4, a CPU supporting AVX instruction set as well as a graphics card supporting Vulkan 1.3 are required.
    Downloads: 68 This Week
    Last Update:
    See Project
  • 16
    KernelEx is an Open Source compatibility layer with an aim to allow running Windows 2000/XP-only applications on Microsoft Windows 98 and Microsoft Windows Millennium operating systems.
    Leader badge
    Downloads: 276 This Week
    Last Update:
    See Project
  • 17
    ConEmu - Handy Console Window

    ConEmu - Handy Console Window

    Local Terminal Emulator

    ConEmu-Maximus5 aims to be handy, comprehensive, fast and reliable terminal window where you may host any console application developed either for WinAPI (cmd, powershell, far) or Unix PTY (cygwin, msys, wsl bash). As Windows console window enhancement (local terminal emulator), it presents multiple consoles and simple GUI applications as one customizable tabbed GUI window with various features. Also, due to deep integration, ConEmu is the best companion for Far Manager, my favorite shell replacement. Disclaimer. ConEmu is not a shell, so it does not provide "shell features" like tab-completion, command history and others. But you can run any shell or remote access client of your choice in ConEmu! Try Clink for bash-style completion in cmd.exe and PSReadLine or PowerTab in powershell.exe. Or just run Bash from your favourite distro. Also, ConEmu does not provide remote access (SSH/Telnet/...) too, just use your remote client (ssh.exe, telnet.exe) instead.
    Downloads: 223 This Week
    Last Update:
    See Project
  • 18
    Denise

    Denise

    C64/Amiga emulator with shader and runAhead

    Denise is a cycle accurate and platform independant C64 / Amiga 500/1000 emulator. My motivation for this project is understanding how it works and write clean and easy readable code. RetroArch SLANG shaders are supported by Denise. Features already known from the C64 emulation, such as runAhead, savestates, drive sounds, PAL encoding, dynamic rate control, G-Sync/FreeSync, Warp, just in time polling are also available for the Amiga. Denise supports SuperCPU, Final Chesscard, REU, GeoRam, EasyFlash, EasyFlash³, Gmod2, Retro Replay, Action Replay, Final Cartridge, Light Guns/Pens, GunStick, Mouse 1351, Mouse Neos, Paddles, fast loaders such as ProfDOS, PrologicDOS, DolphinDOS, ProSpeed 1571, Turbo Trans, 1571, 1581, drag'n'drop and command line support. GIT repo: https://bitbucket.org/piciji/denise/src/master
    Leader badge
    Downloads: 229 This Week
    Last Update:
    See Project
  • 19
    Phoenix OS

    Phoenix OS

    An alternative way of running Android OS on a Windows system

    Phoenix OS is an Android emulator and operating system that allows you to run Android apps and games on your Windows desktop. It's a free, lightweight desktop environment that includes a taskbar, desktop icons, file management, and multi-window support. Phoenix OS is designed to provide a desktop-like experience on a larger screen. It supports both Intel and AMD processors, but it's more compatible with Intel processors. You can install Phoenix OS to replace Windows or install it alongside Windows in a dual-boot setup. Phoenix OS is a fork of the popular Remix OS. It lacks Google Play Services, but you can easily find the apps you need through APK hosting sites.
    Leader badge
    Downloads: 712 This Week
    Last Update:
    See Project
  • 20
    An open source NES Emulator for Windows and Unix that features solid emulation accuracy and state of the art tools for power users. FCEUX's source code is now hosted at https://github.com/TASVideos/fceux/ win32 autobuilds @ https://ci.appveyor.com/project/zeromus/fceux/build/artifacts
    Leader badge
    Downloads: 303 This Week
    Last Update:
    See Project
  • 21
    decaf-emu

    decaf-emu

    Researching Wii U emulation

    Researching Wii U emulation. Licensed under the terms of the GNU General Public License, version 3 or later (GPLv3+). The latest Windows and Linux binaries are available via Actions artifacts. You must be logged into GitHub in order to download the artifacts. MacOS builds are currently not provided due to complications with Vulkan. Run the decaf-qt executable, it is recommended to run the emulator from the root git directory so that it is able to access resources/fonts/*. Alternatively, set resources_path in the configuration file to point to the resources directory.
    Downloads: 47 This Week
    Last Update:
    See Project
  • 22

    POSROG

    Try Customization Android-x86 OS is Faster, lighter than Emulator with

    POSROG is Android operating system with x86 architecture based on Phoenix OS or AOSP. POSROG focuses on development for device support, performance, gaming and other features, You can also be a contributor to the development of our project This is an open source project non profit and also some components are licensed under GNU General Public License (GPL) 2.0 or later. If you like our project and work, you can support us by donating for further development of our project.
    Leader badge
    Downloads: 626 This Week
    Last Update:
    See Project
  • 23
    emuiibo

    emuiibo

    Virtual amiibo (amiibo emulation) system for Nintendo Switch

    Virtual amiibo (amiibo emulation) system for Nintendo Switch. A virtual amiibo is detected by emuiibo based on two aspects: a amiibo.json and a amiibo.flag file must exist inside the virtual amiibo's folder mentioned above. If (for whatever reason) you would like to disable a virtual amiibo from being recognised by emuiibo, just remove the flag file, and create it again to enable it. While old emuiibo formats are supported and converted to the current format (see above), it is strongly suggested to, unless bin dumps might be indispensable, emuiigen be used, our PC utility designed to create and edit virtual amiibos.
    Downloads: 41 This Week
    Last Update:
    See Project
  • 24
    RPCS3

    RPCS3

    PlayStation 3 emulator and debugger

    RPCS3 is an open-source PlayStation 3 emulator and debugger, allowing users to run PS3 games and software on Windows, Linux, and macOS platforms. It aims to preserve the legacy of the PlayStation 3 by enabling gameplay and software testing beyond the original hardware's lifespan. The project has made significant progress in compatibility and performance, supporting a wide range of PS3 titles.
    Downloads: 40 This Week
    Last Update:
    See Project
  • 25

    nestopiaue

    Nestopia UE

    This project is a fork of the original Nestopia source code, plus the Linux port. The purpose of the project is to enhance the original, and ensure it continues to work on modern operating systems.
    Leader badge
    Downloads: 235 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.