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.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • PRTG Catches Network Issues Before They Cause Downtime Icon
    PRTG Catches Network Issues Before They Cause Downtime

    Threshold-based alerts flag problems early, so your team can act before users notice, not after.

    Reactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
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  • 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.
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    Downloads: 3,846 This Week
    Last Update:
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  • 2
    DICE
    DICE is a Discrete Integrated Circuit Emulator. It emulates computer systems that lack any type of CPU, consisting only of discrete logic components.
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    Downloads: 42 This Week
    Last Update:
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  • 3
    Dioscuri is an x86 computer hardware emulator written in Java. It is designed by the digital preservation community to make sure that documents and programs from the past can still be accessed in the future. Dioscuri is durable and component-based.
    Downloads: 2 This Week
    Last Update:
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  • 4
    OpenLCDSim - Open Source LCD Simulator

    OpenLCDSim - Open Source LCD Simulator

    Alpha Numeric Liquid Crystal Display simulator

    Simulates dot matrix liquid crystal display control (LCD) modules based on popular chips, specially HD44780 LCD controller/driver
    Downloads: 1 This Week
    Last Update:
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  • Host LLMs in Production With On-Demand GPUs Icon
    Host LLMs in Production With On-Demand GPUs

    NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

    Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
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  • 5
    RetroPC-SIM

    RetroPC-SIM

    RetroPC-SIM is an Arduino project to help to understand how pc works

    RetroPC-SIM is an opensource project, to help to understand how pc works, manage memory and registries, how it represent the numbers and negative numbers, saving results, activating flags, and all it interacting with the simulator only with binary input, also you can connect a perdorated cards reader to input the instructions code from it.
    Downloads: 1 This Week
    Last Update:
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  • 6
    openDLX

    openDLX

    A DLX/MIPS processor simulator

    openDLX is a DLX/MIPS ISA compatible pipeline simulator. (Visit https://github.com/smetzlaff/openDLX for the latest development version or if You want to contribute.)
    Downloads: 1 This Week
    Last Update:
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  • 7
    Blubber system is an Eclipse RCP application for distributed systems modeling. Designed for university researches and inlcudes: task graph editor; graph transformation tools; graph modelling on distributed system; real-time modelling on GerdaFramework.
    Downloads: 0 This Week
    Last Update:
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  • 8
    A cross-platform simulator for embedded systems, with a plug-in architecture for adding microcontrollers and other devices. Written in C for maximum compatibilty and speed. Currently has support for AVR AT90S8515 and ATmega128.
    Downloads: 0 This Week
    Last Update:
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  • 9
    Create JIT common virtual machine into which famous language like java,microsoft ml,python etc can be translate.
    Downloads: 0 This Week
    Last Update:
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  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
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  • 10
    JSim8086 is platform-independent Assembly Language Simulator of the Intel 8086 CPU. It was designed to be a learning tool (CAL) for first year Computing students who are learning Computer Systems Organisation and Assembly Programming.
    Downloads: 0 This Week
    Last Update:
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  • 11
    N-sim is a framework for studying and developing wireless sensor networks. It emulates the computation of sensor platforms, simulates the wireless communications, and allows plug-in models for source detection simulation. Intended for cluster computing.
    Downloads: 0 This Week
    Last Update:
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  • 12
    Ever wish you could make a virtual hard drive on your computer? What If I told you, you can! Masterdrive is one of the only Virtual hard Drive creators for Windows and you can get it totally free! Only With NTI's MasterDrive!
    Downloads: 0 This Week
    Last Update:
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  • 13
    This project has adopted a parser for the output of SimIt-ARM's sema_count program. It is useful to get statistically relevant information from the output of a batch run of the simulator.
    Downloads: 0 This Week
    Last Update:
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  • 14
    A perl/Gtk2 GUI for VNUML (http://www.dit.upm.es/vnuml/). This GUI will let you quick prototype your VNUML topology by graphically placing, linking and editing network elements, reading/writing VNUML files and run your simulation right from the GUI.
    Downloads: 0 This Week
    Last Update:
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  • 15
    Library for the simulation of high-performance processors. The goal is to provide an environment for testing new hardware solutions. See Doxygen doc in "CVS browse" for more info.
    Downloads: 0 This Week
    Last Update:
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  • 16
    Educational software for designing and simulating logic circuits, with intuitive GUI, hierarchical circuits and multi bit buses, oscilloscope, and navigate running circuits hierarchy. Please visit project's web site at: http://www.LogicCircuit.org
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    Downloads: 4 This Week
    Last Update:
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