Showing 179 open source projects for "java-legacy"

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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. ...
    Downloads: 3,228 This Week
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  • 2
    Emupedia

    Emupedia

    The purpose of Emupedia is to serve as a nonprofit meta-resource

    Emupedia is an ambitious open-source web platform and preservation initiative that aims to archive, emulate, and make accessible legacy software, games, and operating systems through a browser-based interface. Rather than focusing on a single emulator, it acts as a meta-layer that integrates multiple emulation technologies into a cohesive virtual desktop experience. The project recreates entire operating system environments, such as Windows 95 and Windows 98, within the browser, allowing users to interact with software as if they were using original hardware. ...
    Downloads: 40 This Week
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  • 3
    Windows 95 in Electron

    Windows 95 in Electron

    Windows 95 in Electron. Runs on macOS, Linux, and Windows

    ...It essentially wraps an emulator — preconfigured to boot Windows 95 — inside a user-friendly app built with web technologies so developers and hobbyists can explore the look and feel of that classic OS without needing legacy hardware or complicated setup. Users can interact with familiar UI elements like the Start menu, File Explorer, and retro applications in a sandboxed environment that evokes early personal computing. Beyond being a playful trip down memory lane, the project demonstrates how emulation can be packaged using modern frameworks & how legacy operating systems can be encapsulated as distributable desktop experiences. ...
    Downloads: 119 This Week
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  • 4
    Retrobios

    Retrobios

    Complete BIOS and firmware packs for RetroArch, Batocera, Recalbox

    Retrobios is a low-level systems programming project focused on recreating or emulating BIOS-like functionality for legacy or experimental computing environments. It is designed to provide a minimal firmware layer that initializes hardware and prepares systems to boot, often used for educational purposes or retrocomputing experiments. The project likely explores how early computing systems managed hardware abstraction, memory initialization, and device communication before modern operating systems take control. ...
    Downloads: 812 This Week
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  • 5
    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: 261 This Week
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  • 6
    v86

    v86

    x86 PC emulator and x86-to-wasm JIT, running in the browser

    ...It translates x86 machine code into WebAssembly at runtime, enabling users to boot and run full operating systems without installing anything locally. The emulator supports a wide range of legacy systems, including Linux, Windows 95/98/2000, FreeDOS, and various experimental OSes. It simulates essential hardware components such as CPU, memory, VGA graphics, sound cards, network adapters, and storage controllers. Designed for both experimentation and embedding, v86 can be integrated into web apps or used as a standalone virtual machine environment. ...
    Downloads: 2 This Week
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  • 7
    Ruffle

    Ruffle

    A Flash Player emulator written in Rust

    Ruffle is an open-source emulator for Adobe Flash Player, written primarily in Rust, and targeted at both desktop applications and web browsers via WebAssembly. Its goal is to enable legacy Flash content—animations, games, interactive media—to continue running safely and reliably after official Flash support was discontinued. On the web side, Ruffle is embedded into pages or installed as a browser extension; in the desktop version, it can open .swf files directly or embed them in applications. Because it’s built with memory safety in mind, Ruffle helps avoid many of the security vulnerabilities that plagued classic Flash (buffer overflows, use-after-free, etc.). ...
    Downloads: 76 This Week
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  • 8
    Winetricks

    Winetricks

    Winetricks is an easy way to work around problems in Wine

    ...This makes troubleshooting and preparing Wine prefixes more accessible for end users and reduces the frustration of missing dependencies, especially with games or legacy business software.
    Downloads: 47 This Week
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  • 9
    VirtualBox

    VirtualBox

    Virtualization software for x86_64 hardware

    ...It supports a wide variety of host platforms (Linux, Windows, macOS, Solaris, etc.) and guest OSes, enabling, for example, running Linux on a Windows PC, running Windows Server on a Linux host, or even legacy OSes in a controlled environment. This flexibility makes VirtualBox ideal for developers, testers, sysadmins, or hobbyists who need different OS environments, want to test software across systems, or need isolation for development, sandboxing, or security experiments. VirtualBox offers both a user-friendly GUI as well as a command-line interface and headless mode, making it useful for desktop usage as well as server or automated environments.
    Downloads: 133 This Week
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  • 10
    Furnace

    Furnace

    A multi-system chiptune tracker compatible with DefleMask modules

    ...Its interface is inspired by traditional tracker software, allowing precise control over note sequences, effects, and instrument parameters. Furnace stands out for its compatibility with Deflemask modules and its ability to emulate the sound characteristics of numerous legacy systems with high fidelity. It is widely used by musicians, game developers, and enthusiasts who want to recreate or innovate within retro sound design constraints.
    Downloads: 8 This Week
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  • 11
    Emulators written in JavaScript

    Emulators written in JavaScript

    A list of emulators written in the JavaScript programming language

    ...The project originated as a collection of emulators shared within developer communities and has grown into a valuable reference for anyone interested in web-based emulation technologies. It highlights the versatility of JavaScript and WebAssembly in recreating legacy hardware environments directly within a browser. By aggregating these projects, JSEmu provides an accessible entry point for exploring different emulator implementations and comparing approaches across systems.
    Downloads: 1 This Week
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  • 12
    ares

    ares

    ares is a cross-platform, open source, multi-system emulator

    ...It also integrates a ROM database and flexible configuration system, enabling users to load and manage game content efficiently. By focusing on clarity and correctness, Ares contributes to the long-term documentation and preservation of legacy systems.
    Downloads: 4 This Week
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  • 13
    Vectras VM

    Vectras VM

    It's a Virtual Machine App for Android Which is Based on QEMU

    Vectras VM Android is a mobile virtualization platform built on top of QEMU that enables users to run full desktop operating systems directly on Android devices. It functions as a complete virtual machine manager, allowing the emulation of systems such as Windows, Linux, macOS, and even other Android environments within a single app. The project is designed to push the limits of mobile hardware by leveraging modern smartphone CPUs and RAM configurations to simulate full computing...
    Downloads: 289 This Week
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  • 14
    PCjs Machines

    PCjs Machines

    The original IBM PC and other machine emulations in JavaScript

    PCjs Machines is a browser-based emulation platform that recreates a wide range of early computing systems, including the original IBM PC and other historical machines, entirely using JavaScript. It serves both as an emulator and a digital preservation project, allowing users to interact with vintage software and hardware environments directly in their web browsers. The platform includes support for multiple architectures such as x86, 6502, and 8080-based systems, as well as minicomputers...
    Downloads: 1 This Week
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  • 15
    J2ME-Loader

    J2ME-Loader

    A J2ME emulator for Android

    J2ME-Loader is a J2ME emulator for Android. It supports most 2D and 3D games (including Mascot Capsule 3D ones). Emulator has a virtual keyboard, individual settings for each application, scaling support. This project is a fork of J2meLoader. Enabling filtering in some cases can greatly reduce performance. Disable this option if the game is too slow. Image flickering issues can be fixed by enabling the "Immediate processing mode" option.
    Downloads: 40 This Week
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  • 16
    Coffee GB

    Coffee GB

    Gameboy emulator in Java 8

    Coffee GB is a Gameboy Color emulator written in Java 8. It's meant to be a development exercise. More info can be found in the blog post. First I implemented all the Gameboy CPU opcodes. It’s not exactly the Z80, but it’s pretty close. As a reference, I’ve used the GameBoy CPU Manual - later on I discovered that it has a few typos and is not specific enough for some of the operations.
    Downloads: 4 This Week
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  • 17
    floci

    floci

    Light, fluffy, and always free, the AWS Local Emulator alternative

    Floci is a free, open-source local AWS emulator designed as a lightweight alternative for testing cloud applications without using a real AWS account. It is built around a simple Docker-based workflow where developers can start the emulator and point standard AWS tools at a local endpoint. The project emphasizes no accounts, no authentication gates, no paid feature tiers, and broad local service coverage. It supports many AWS-style services, including storage, queues, databases, identity,...
    Downloads: 12 This Week
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  • 18
    AndroidSDK

    AndroidSDK

    Full-fledged Android SDK Docker Image

    AndroidSDK is a Docker-based development environment that provides a complete, portable Android SDK setup for building, testing, and deploying Android applications in a consistent and reproducible way. Instead of installing and configuring the Android SDK locally, developers can run a preconfigured container that includes essential tools such as the SDK, build tools, Gradle, and Kotlin compiler. This approach solves common issues related to environment inconsistency, such as dependency...
    Downloads: 7 This Week
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  • 19
    unidbg

    unidbg

    Allows you to emulate an Android native library

    Allows you to emulate an Android native library, and an experimental iOS emulation. This is an educational project to learn more about the ELF/MachO file format and ARM assembly. Emulation of the JNI Invocation API so JNI_OnLoad can be called. Support JavaVM, JNIEnv. Emulation of syscalls instruction. Support ARM32 and ARM64. Inline hook, thanks to Dobby. Android import hook, thanks to xHook. iOS fishhook and substrate and whale hook. unicorn backend support simple console debugger, gdb...
    Downloads: 3 This Week
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  • 20
    Unicorn Engine

    Unicorn Engine

    Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc

    ...Clean/simple/lightweight/intuitive architecture-neutral API. Implemented in pure C language, with bindings for Pharo, Crystal, Clojure, Visual Basic, Perl, Rust, Haskell, Ruby, Python, Java, Go, D, Lua, JavaScript, .NET, Delphi/Pascal & MSVC available. Native support for Windows & *nix (with macOS, Linux, Android, *BSD & Solaris confirmed). High performance by using the Just-In-Time compiler technique. Support fine-grained instrumentation at various levels. Thread-safe by design. Distributed under free software license GPLv2. ...
    Downloads: 4 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.
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    Downloads: 52 This Week
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  • 22
    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.
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    Downloads: 46 This Week
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  • 23

    JavaQemu

    JavaQemu was my GUI Front End project for QEMU, written in Java.

    JavaQemu is a graphical frontend for QEMU, developed in Java. It was designed to simplify the use of QEMU on Windows systems, providing a user-friendly interface on top of the command-line tool. ## Status This project is currently **archived** and no longer under active development. ## Compatibility JavaQemu was originally built for: * Java Runtime Environment (JRE) 1.7 / 1.8 and newer * Microsoft Windows ## Future Direction A new version of this concept may be developed in the future, using more modern technologies and improved architecture. ## Notes This repository remains available for reference and historical purposes. ...
    Downloads: 6 This Week
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  • 24
    TURGEN

    TURGEN

    Create your own Atari tapes

    With TURGEN, you can record your own tapes with software for Atari 8-bit computers, and transfer data from your PC or Mac to your Atari 8-bit computer using your data recorder and a cassette adapter. TURGEN converts digital images of Atari software to the original standard Atari tape records and also various "turbo" systems. You can create WAVE files, tape images, or send the signal directly to the sound card. Tools such as Wizard for files, Tape Side Creator, Dual Track Tape creator...
    Downloads: 13 This Week
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  • 25
    A new 64-bit RISC platform, complemented by a set of development tools, standards specifications and synthesizable VHDL implementations.
    Downloads: 0 This Week
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