Emulators

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

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  • 1
    NetherSX2 Classic

    NetherSX2 Classic

    Continuation of NetherSX2 based on AetherSX2 3668

    NetherSX2-classic is a companion and variant of NetherSX2 that targets a specific older base version of the AetherSX2 emulator (based on the 3668 branch), applying similar custom patches to provide a stable and performant PS2 emulation environment on Android devices. The project stitches in anti-tampering modifications, RetroAchievements notification fixes, and controller and GameDB updates while maintaining the legacy behavior of the classic build for compatibility with titles that might perform better on the older codebase. Because this classic branch starts from a slightly different upstream version than NetherSX2-patch, users often choose it for performance reasons on lower-power devices or for games with known regressions in newer builds. As with the patch variant, the repository includes configuration changes, fixes for widescreen and deinterlacing behavior, and updated game and controller support developed by the community.
    Downloads: 3,099 This Week
    Last Update:
    See Project
  • 2
    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.
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    Downloads: 4,119 This Week
    Last Update:
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  • 3
    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: 3,107 This Week
    Last Update:
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  • 4
    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.
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    Downloads: 1,802 This Week
    Last Update:
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  • 5
    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: 1,676 This Week
    Last Update:
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  • 6
    Wine

    Wine

    Run Windows applications on Linux, BSD, Solaris, and Mac OS X

    Wine is an Open Source implementation of the Windows API on top of X and Unix. Wine provides both a development toolkit for porting Windows sources to Unix and a program loader, allowing many unmodified Windows binaries to run on x86-based Unixes.
    Leader badge
    Downloads: 925 This Week
    Last Update:
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  • 7
    GoldHEN - PS4 Homebrew Enabler
    GoldHEN is a homebrew enabler and payload designed for PlayStation 4 systems that enables the execution of unsigned code, modifications, and custom applications by leveraging kernel-level access. It functions as an enhancement layer built on top of exploited firmware environments, allowing users to unlock additional capabilities beyond what is normally permitted by the console. The project provides a wide range of system-level features, including debugging tools, cheat engines, and plugin support, making it popular within the console modification community. It integrates closely with the PS4 operating system to provide seamless functionality while maintaining system stability. GoldHEN also supports features such as FTP access and file system browsing, enabling users to manage internal data and install custom content. Its modular design allows developers to extend its capabilities through plugins and updates.
    Downloads: 210 This Week
    Last Update:
    See Project
  • 8
    NetherSX2

    NetherSX2

    Continuation of NetherSX2 based on AetherSX2 4248

    NetherSX2-patch is a community-driven continuation and enhancement of the NetherSX2 Android PlayStation 2 emulator, itself a modded fork of the open-source AetherSX2 project originally based on PCSX2. It focuses on providing a more complete and feature-rich experience by applying patches to the upstream emulator build and removing ad-related bloat, fixing notification issues, and exposing many internal settings so users have finer control over performance and compatibility on mobile devices. The project maintains an up-to-date GameDB (game compatibility database), improves controller support, and includes widescreen and no-interlace patches that make many games look and run better on modern screens. Developers also include additional fixes specific to AetherSX2 and NetherSX2 builds, along with tools to resign APKs to avoid Play Protect warnings, which makes installation smoother on Android hardware.
    Downloads: 190 This Week
    Last Update:
    See Project
  • 9
    The Free Unix Spectrum Emulator (Fuse): an emulator of the 1980s home computer and various clones for Unix, Mac OS X and Windows.
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    Downloads: 934 This Week
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  • 10

    VisualBoyAdvance

    An emulator for Gameboy and GameboyAdvance systems

    An emulator for Gameboy and GameboyAdvance systems.
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    Downloads: 466 This Week
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  • 11
    This is Java 2 Micro Edition (J2ME) CLDC/MIDP Emulator. Allows demonstrate MIDlet based applications in web browser applet, also can be run as standalone java application.
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    Downloads: 234 This Week
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  • 12
    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: 179 This Week
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  • 13
    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: 194 This Week
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  • 14
    RetroArch

    RetroArch

    RetroArch is a frontend for emulators, game engines and media players.

    RetroArch is a way to run classic games on a wide assortment of Operating Systems and Consoles. Support the Developers on their Patron! https://www.patreon.com/libretro
    Downloads: 28 This Week
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  • 15
    NESbox

    NESbox

    Emulator of NES, SNES, Sega Mega Drive, GameBoy video consoles

    The nesbox/emulator is an open source, browser-based emulator for a collection of retro gaming systems (NES, Super Nintendo, Sega Mega Drive, GameBoy, etc.). It’s written in ActionScript/Flash, and the project includes SWF binaries so you can embed the emulator into web pages. The emulator allows users to load ROMs and play them in their browsers via the Flash plugin. It’s licensed under the MIT license, meaning it’s quite permissive in terms of reuse. While Flash is an aging technology, the project remains a practical way to access old console gaming via browser, as long as Flash is supported or available.
    Downloads: 18 This Week
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  • 16
    xBRZ

    xBRZ

    xBRZ: "Scale by rules" - high quality image upscaling filter by Zenju

    xBRZ is a high-quality image upscaling filter for creating beautiful HD representations from low-resolution images. Reference implementations for common emulators can be found in the download section: ● DOSBox ● ePSXe ● HqMAME ● ScummVM ● Snes9x ● Kega Fusion http://sourceforge.net/projects/xbrz/files/ Test the xBRZ scaler with your own images and compare against other scalers with the "Scaler Test" tool: http://sourceforge.net/projects/xbrz/files/ScalerTest_1.1.zip
    Leader badge
    Downloads: 167 This Week
    Last Update:
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  • 17
    Yabause
    Yabause is a portable Sega Saturn emulator.
    Downloads: 66 This Week
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  • 18
    Use Wine (Wine Is Not an Emulator) to run Windows applications on Darwin and Mac OS X.
    Downloads: 37 This Week
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  • 19
    ASAP - Another Slight Atari Player
    ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
    Leader badge
    Downloads: 52 This Week
    Last Update:
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  • 20
    This emulator is capable of providing a faithful replication of the HP48. It also has a debugger for the saturn processor.
    Leader badge
    Downloads: 43 This Week
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  • 21
    Java SID Player Music Library V2
    This is a Commodore 64 emulator specialized for sound reproduction. It is also a SID player for music collections like HVSC and CGSC. It is a full C64 emulator and can play games of the GameBase64 project as well.
    Leader badge
    Downloads: 40 This Week
    Last Update:
    See Project
  • 22
    DICE
    DICE is a Discrete Integrated Circuit Emulator. It emulates computer systems that lack any type of CPU, consisting only of discrete logic components.
    Leader badge
    Downloads: 25 This Week
    Last Update:
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  • 23
    NET-Simulator was created to help lecturers and students in the study of computer networks. Students can build virtural networks in the virtual environment provided by NET-Simulator. These devices are controlled by means of command line interface.
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    Downloads: 34 This Week
    Last Update:
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  • 24
    Android Emulator M1 Preview

    Android Emulator M1 Preview

    Preview of some basic Android emulation functionality

    android-emulator-m1-preview captured the early effort to bring the Android Emulator to Apple Silicon by targeting the ARM64 host and macOS virtualization APIs. The preview introduced native builds that avoid x86 translation, dramatically improving boot time, UI smoothness, and battery usage on M1-class Macs. It documented limitations typical of a preview—graphics features, sensor fidelity, and compatibility quirks—while outlining the path to parity with established macOS targets. Developers could test app installs, basic input, and network scenarios to validate their toolchains ahead of mainstream IDE support. The project also served as a staging ground for feedback on Hypervisor.framework usage, Metal rendering, and system image formats for ARM guests. Although superseded by stable emulator releases, it remains a useful historical reference for how Android tooling crossed the Apple Silicon transition.
    Downloads: 3 This Week
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    See Project
  • 25
    RetroPie BIOS

    RetroPie BIOS

    Full BIOS collection for RetroPie

    RetroPie BIOS is a curated collection of BIOS files intended for use with the RetroPie emulation platform, providing the essential firmware required to run a wide range of classic gaming systems. The repository organizes BIOS files for numerous consoles and arcade systems, ensuring compatibility with RetroPie and related emulation environments. Each file in the collection has been verified against reference databases such as the Libretro system definitions, ensuring accuracy and reliability. The project simplifies the process of setting up emulation systems by consolidating required BIOS files into a single, organized package that users can directly integrate into their RetroPie installation. It also includes checksum validation mechanisms, allowing users to verify file integrity and ensure that BIOS files match expected standards. By maintaining a structured and verified dataset, the repository reduces common issues associated with missing or incorrect BIOS files.
    Downloads: 3 This Week
    Last Update:
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