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

  • Compliant and Reliable File Transfers Backed by Top Security Certifications Icon
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  • 1
    PowerShell

    PowerShell

    Command-line shell and scripting language built on .NET

    Powershell is a cross-platform, task-based command-line shell and scripting language that helps rapidly automate tasks that manage operating systems (Linux, macOS and Windows) and processes. It works well with existing tools and is optimized for dealing with structured data, REST APIs and object models. PowerShell was developed by Microsoft as a task management and configuration management framework. Powershell is designed to let you manage computers from the command line and improve the command-line and scripting environment.
    Downloads: 6,281 This Week
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  • 2
    Hibernate

    Hibernate

    An object relational-mapping (ORM) library for Java

    The Hibernate projects offer a suite of powerful Java libraries to work with data. It is best known for Hibernate ORM, which provides relational persistence for Java models and is an implementation of the Jakarta Persistence specification. Hibernate projects do not consistently release binaries or documentation to SourceForge anymore. For up-to-date information, refer to the Hibernate website: * Hibernate ORM: https://hibernate.org/orm/ * Hibernate Validator: https://hibernate.org/validator/ * Hibernate Search: https://hibernate.org/search/ That website will also be updated with newer projects, such as Hibernate Reactive.
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    Downloads: 2,866 This Week
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  • 3
    Arianne RPG

    Arianne RPG

    Arianne is an engine to develop multiplayer online games like Stendhal

    Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world
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    Downloads: 3,116 This Week
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  • 4
    BepInEx

    BepInEx

    Unity / XNA game patcher and plugin framework

    Unity / XNA game patcher and plugin framework. BepInEx is a plugin / modding framework for Unity Mono, IL2CPP, and .NET framework games (XNA, FNA, MonoGame, etc.) Stable builds are released once a new iteration of BepInEx is considered feature-complete. They have the least bugs, but some newest features might not be available. Bleeding edge builds are available on BepisBuilds. Bleeding edge builds are always the latest builds of the source code. Thus they are the opposite to stable builds: they have the newest features and bugfixes available, but usually tend to be the most buggy. Therefore you should use bleeding edge builds only if you are asked to or if you want to preview the upcoming version of BepInEx. Some games require some additional changes in order to work around specific limitations of different Unity versions.
    Downloads: 437 This Week
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  • 5
    EhViewer

    EhViewer

    EhViewer overhauled with Material Design 3, Jetpack Compose and more

    EhViewer fork is dedicated to lightweight and high-performance.
    Downloads: 277 This Week
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  • 6
    OpenSSH

    OpenSSH

    Win32 port of OpenSSH

    OpenSSH is a complete implementation of the SSH protocol (version 2) for secure remote login, command execution and file transfer. It includes a client ssh and server sshd, file transfer utilities scp and sftp as well as tools for key generation (ssh-keygen), run-time key storage (ssh-agent) and a number of supporting programs. This is a port of OpenBSD's OpenSSH to most Unix-like operating systems, including Linux, OS X and Cygwin. Portable OpenSSH polyfills OpenBSD APIs that are not available elsewhere, adds sshd sandboxing for more operating systems and includes support for OS-native authentication and auditing (e.g. using PAM). There are many build-time customization options available.
    Downloads: 251 This Week
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  • 7
    Laravel

    Laravel

    The PHP Framework For Web Artisans

    Laravel is a free, open-source PHP web framework
    Downloads: 237 This Week
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  • 8
    REFramework

    REFramework

    Scripting platform, modding framework and VR support for RE Engine

    A mod framework, scripting platform, and modding tool for RE Engine games. Inspired by and uses code from Kanan. Supports Resident Evil 2, Resident Evil 3, Resident Evil 7, Resident Evil Village, Devil May Cry 5, Monster Hunter Rise. Lua Scripting API (All games), VR, Generic 6DOF VR support for all games, motion controls for RE2/RE3 (RE7 and RE8 motion controls are still WIP!), first person (RE2, RE3), free camera (All games), scene timescale (All games), manual flashlight (RE2, RE3, RE8), FOV slider & vignette disabler (RE2, RE3, RE8).
    Downloads: 173 This Week
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  • 9
    StabilityMatrix

    StabilityMatrix

    Multi-Platform Package Manager for Stable Diffusion

    StabilityMatrix is a project that helps organize, evaluate, and compare generative AI models and their behavior across prompts, datasets, or configuration settings. It provides a framework to run experiments systematically—capturing inputs, model configurations, outputs, and metrics—so researchers and practitioners can reason about differences in quality, robustness, and failure modes. The repository often bundles tooling for automated prompt sweeping, scoring heuristics (such as diversity, coherence, or task-specific metrics), and visualization helpers to make comparisons interpretable. This approach is useful for model selection, prompt engineering, and benchmarking new checkpoints against baseline models under reproducible conditions. By turning ad-hoc tests into tracked experiments, StabilityMatrix reduces bias, surfaces subtle regressions, and accelerates iteration when tuning generative systems.
    Downloads: 142 This Week
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  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

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  • 10
    Flask

    Flask

    The Python micro framework for building web applications

    Flask is a lightweight WSGI web application framework designed to help developers get started with their web applications quickly and easily with the ability to scale up to complex applications. Being a “micro” framework does not mean that your whole web application must fit into a single Python file (although it can) or that it be limited; rather it means that Flask aims to keep the core simple but extensible. Flask offers suggestions, but it won’t make any decisions for you such as what database to use or what dependencies or project layout to choose. You get to choose the tools and libraries you want to use, so Flask can be everything you need and nothing you don’t. Flask has become one of the most popular Python web application frameworks, and has amassed a great number of extensions provided by the community that make adding new functionality easy.
    Downloads: 130 This Week
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  • 11
    Visual Basic 6.0 Runtime Plus

    Visual Basic 6.0 Runtime Plus

    The complete and extended version of Visual Basic 6.0 runtime library

    This is the complete package of runtime files and redistributable libraries for running or distributing applications written in Visual Basic 6.0 and together with some third-party redistributable components. Notes and Disclaimer: * Visual Basic 6.0 is a trademark of Microsoft Corporation. * All trademarks and components are owned by their respective owners. * The developer's scope was the collection of VB6 redistributables and creation of installer only. * Use at your own risk, the developers was not responsible for any damages for using this software.
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    Downloads: 675 This Week
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  • 12
    Apache NetBeans

    Apache NetBeans

    Apache NetBeans

    Apache NetBeans is much more than a text editor. It highlights source code syntactically and semantically, lets you easily refactor code, with a range of handy and powerful tools. Apache NetBeans provides editors, wizards, and templates to help you create applications in Java, PHP and many other languages. Apache NetBeans can be installed on all operating systems that support Java, i.e, Windows, Linux, Mac OSX and BSD. Write Once, Run Anywhere, applies to NetBeans too.
    Downloads: 102 This Week
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  • 13
    Radare2

    Radare2

    UNIX-like reverse engineering framework and command-line toolset

    A free/libre toolchain for easing several low-level tasks like forensics, software reverse engineering, exploiting, and debugging. It is composed by a bunch of libraries (which are extended with plugins) and programs that can be automated with almost any programming language. It is recommended to install it from git, alternatively, you can pick the last release (every 6 weeks) from Github. Batch, Commandline, visual, and panels interactive modes. Embedded webserver with js scripting and WebUI. Assemble and disassemble a large list of CPUs. Runs on Windows and any other UNIX flavor out there. Analyze and emulate code with ESIL. Native debugger and GDB, WINDBG, QNX, and FRIDA. Navigate ASCII-art control flow graphs. Ability to patch binaries, and modify code or data. Search for patterns, magic headers, and function signatures. Easy to extend and modify. Commandline, C API, script with r2pipe in any language.
    Downloads: 100 This Week
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  • 14
    iDempiere

    iDempiere

    iDempiere. Community Powered Enterprise

    iDempiere. Community Powered Enterprise iDempiere Business Suite ERP/CRM/SCM done the community way. Focus is on the Community that includes Subject Matter Specialists, Implementors and End-Users. iDempiere is based on original Compiere/Adempiere plus a new architecture to use state-of-the-art technologies like OSGi, Buckminster, zk.
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    Downloads: 612 This Week
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  • 15
    tsParticles

    tsParticles

    Easily create highly customizable particles

    Easily create highly customizable particles, confetti and fireworks animations and use them as animated backgrounds for your website. Ready to use components available for React.js, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Inferno, Solid, Riot and Web Components. A lightweight TypeScript library for creating particles. Dependency-free, browser ready and compatible with React.js, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Inferno, Riot.js, Solid.js, and Web Components. This library is available on the two most popular CDNs and it's easy and ready to use, if you were using particles.js it's even easier. CDNs and npm have all the sources you need in Javascript, a bundled browser ready (tsparticles.min.js) and all files split for import syntax. Premium Addons for Elementor is one of the most common plugins for Elementor that offers more than 55 highly customizable Elementor Widgets and Section Add-ons.
    Downloads: 86 This Week
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  • 16
    Volatility

    Volatility

    An advanced memory forensics framework

    Volatility is a widely used open-source framework for analyzing memory captures (RAM dumps) from Windows, Linux, and macOS systems. It enables investigators and malware analysts to extract process lists, network connections, DLLs, strings, artifacts, and more. Volatility supports many plugins for detecting hidden processes, malware, rootkits, and event tracing. It’s essential in digital forensics and incident response workflows.
    Downloads: 82 This Week
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  • 17
    Next.js

    Next.js

    The React Framework

    Next.js is the React framework for lightweight apps, static websites, pre-rendered apps and more. It solves the most common problems associated with building a complete web application with React, such as those involving code bundling and transforming, production automizations, page rendering and having to write server-side code. Next.js offers a best in class “Developer Experience” through such capabilities as pre-rendering, single command static exporting, automatic code-splitting, hot code reloading and many other great features. It is fully extensible and ready for production. It’s no wonder Next.js is used in tens of thousands of production-facing websites and web applications from some of the world’s biggest brands.
    Downloads: 74 This Week
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  • 18
    Pentaho Data Integration

    Pentaho Data Integration

    Pentaho Data Integration ( ETL ) a.k.a Kettle

    Pentaho Data Integration uses the Maven framework. Project distribution archive is produced under the assemblies module. Core implementation, database dialog, user interface, PDI engine, PDI engine extensions, PDI core plugins, and integration tests. Maven, version 3+, and Java JDK 1.8 are requisites. Use of the Pentaho checkstyle format (via mvn checkstyle:check and reviewing the report) and developing working Unit Tests helps to ensure that pull requests for bugs and improvements are processed quickly. In addition to the unit tests, there are integration tests that test cross-module operation.
    Downloads: 72 This Week
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  • 19
    AdminLTE

    AdminLTE

    Free admin dashboard template based on Bootstrap 4

    AdminLTE is a fully responsive administration template. Based on Bootstrap 4.6 framework and also the JS/jQuery plugin. Highly customizable and easy to use. Fits many screen resolutions from small mobile devices to large desktops. AdminLTE.io just opened a new premium templates page. Handpicked to ensure the best quality and the most affordable prices. AdminLTE has been carefully coded with clear comments in all of its JS, SCSS and HTML files. SCSS has been used to increase code customizability. Best open source admin dashboard & control panel theme. Built on top of Bootstrap, AdminLTE provides a range of responsive, reusable, and commonly used components. Mobile first design. Fits many resolutions, from large desktops to small mobile devices. Support for printing any page. The invoice page makes a perfect example. Choose a skin that matches your branding or edit the LESS variables to create your own.
    Downloads: 65 This Week
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  • 20
    idevicerestore

    idevicerestore

    Restore/upgrade firmware of iOS devices

    A command-line application to restore firmware files to iOS devices. The iDevice restore application is a full reimplementation of all granular steps which are performed during the restore of firmware to a device. In general, upgrades and downgrades are possible, however subject to the availability of SHSH blobs from Apple for signing the firmware files. idevicerestore requires a properly installed usbmuxd for the restore procedure. Please make sure that it is either running or configured to be started automatically as soon as a device is detected in normal and/or restore mode. If properly installed this will be handled by udev/systemd.
    Downloads: 59 This Week
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  • 21
    wxWidgets

    wxWidgets

    A cross-platform GUI library

    wxWidgets is a C++ library that lets developers create applications for Windows, Mac OS X, Linux and other platforms with a single code base. It has popular language bindings for Python, Perl, Ruby and many other languages, and unlike other cross-platform toolkits, wxWidgets gives applications a truly native look and feel because it uses the platform's native API rather than emulating the GUI. It's also extensive, free, open-source and mature.
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    Downloads: 259 This Week
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  • 22
    Selenium

    Selenium

    Browser automation framework and ecosystem

    Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should) also be automated as well. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments, then you want to use Selenium WebDriver, a collection of language specific bindings to drive a browser - the way it is meant to be driven. If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome and Firefox add-on that will do simple record-and-playback of interactions with the browser. If you want to scale by distributing and running tests on several machines and manage multiple environments from a central point.
    Downloads: 57 This Week
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  • 23
    mpv.net

    mpv.net

    mpv.net is a modern media player for Windows that works just like mpv

    mpv.net is a modern desktop media player for Windows based on the popular mpv player. mpv.net is designed to be mpv compatible, almost all mpv features are available because they are all contained in libmpv, this means the official mpv manual applies to mpv.net. mpv focuses on the usage of the command line and the terminal, mpv.net retains the ability to be used from the command line and the terminal and adds a modern Windows GUI on top of it. Video output that is capable of many features loved by videophiles, such as video scaling with popular high-quality algorithms, color management, frame timing, interpolation, HDR, and more. Leverages the FFmpeg hwaccel APIs to support DXVA2 video decoding acceleration. mpv.net is based on libmpv which offers a straightforward C API that was designed from the ground up to make mpv usable as a library and facilitate easy integration into other applications. mpv is like VLC not based on DirectShow or Media Foundation.
    Downloads: 53 This Week
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  • 24
    CadQuery

    CadQuery

    A python parametric CAD scripting framework based on OCCT

    CadQuery is an intuitive, easy-to-use Python library for building parametric 3D CAD models. It has several goals. Build models with scripts that are as close as possible to how you’d describe the object to a human, using a standard, already established programming language. Create parametric models that can be very easily customized by end users. Output high-quality CAD formats like STEP and AMF in addition to traditional STL. Provide a non-proprietary, plain text model format that can be edited and executed with only a web browser. The scripts use a standard programming language, Python, and thus can benefit from the associated infrastructure. This includes many standard libraries and IDEs. CadQuery's CAD kernel Open CASCADE Technology (OCCT) is much more powerful than the CGAL used by OpenSCAD. Features supported natively by OCCT include NURBS, splines, surface sewing, STL repair, STEP import/export, and other complex operations.
    Downloads: 52 This Week
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  • 25
    Django REST framework

    Django REST framework

    Powerful and flexible toolkit for building Web APIs

    Django REST framework is a powerful and flexible toolkit for building Web APIs. Some reasons you might want to use REST framework: The Web browsable API is a huge usability win for your developers. Authentication policies including packages for OAuth1a and OAuth2. Serialization that supports both ORM and non-ORM data sources. Customizable all the way down - just use regular function-based views if you don't need the more powerful features. Extensive documentation, and great community support. Used and trusted by internationally recognised companies including Mozilla, Red Hat, Heroku, and Eventbrite. REST framework is a collaboratively funded project. If you use REST framework commercially we strongly encourage you to invest in its continued development by signing up for a paid plan.
    Downloads: 51 This Week
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