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

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
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  • 1
    CLISP - an ANSI Common Lisp
    CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.
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    Downloads: 247 This Week
    Last Update:
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  • 2
    Windows port of Glade 3. The latest version includes a stand-alone installer with bundled GTK+ 2.16.0 and libxml 2.7.3. Extra installers or zip files are not required. No changes to the Glade source were required to compile under mingw.
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    Downloads: 156 This Week
    Last Update:
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  • 3
    Oblivion Works
    Wrye Bash has moved to Github! Downloads: https://github.com/wrye-bash/wrye-bash/releases Code: https://github.com/wrye-bash/wrye-bash
    Downloads: 20 This Week
    Last Update:
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  • 4
    Compiere ERP + CRM Business Solution
    Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
    Downloads: 18 This Week
    Last Update:
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  • 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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  • 5
    J2ME Polish is a next generation framework for the rapid development of J2ME applications. Features included are a powerful GUI framework, utility classes and ant-based build tools for the creation of device optimised applications.
    Downloads: 4 This Week
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  • 6

    ASLoader

    Arduino upload tool

    This little Java tool allows you to upload a compiled sketch to your Arduino without using the IDE. Currently the protocols Stk500v1, Stk500v2, Avr109 and SAM-BA are implemented. That means the * Arduino Due, * Arduino Duemilanove, * Arduino Leonardo, * Arduino Leonardo ETH, * Arduino Mega, * Arduino Micro, * Arduino Nano, * Arduino Pro Mini, * Arduino Uno and maybe some others are supported.
    Downloads: 2 This Week
    Last Update:
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  • 7
    Netautor Professional is an application server with integrated development environment, based on PHP. It comes with all substantial features to simplify the programming and the operation of databased Intra- and Internet web applications.
    Downloads: 1 This Week
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  • 8
    1337writer is a converter for 'normal' text to 1337 / l33t text (leetspeech). simply input your text and the programm will output the 1337 version. (hardcore 1337 or simple 1337).
    Downloads: 0 This Week
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  • 9
    AdmIRC is a webmin module for irc server administration. It provides a config interface and advanced security and linking automatism support. Currently UnrealIRCD 3.2 and the services Anope and Epona are supported. Subprojects: irc newsbot and java tools
    Downloads: 0 This Week
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  • Application Monitoring That Won't Slow Your App Down Icon
    Application Monitoring That Won't Slow Your App Down

    AppSignal's Rust-based agent is lightweight and stable. Already running in thousands of production apps.

    Full APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
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  • 10
    Aloys Core Framework is a framework for Internet applications written in PHP/SQL (including mySQL). AloysCore gives all classes for dispatching modules calls, manage various environment variables, deal with multilingual texts, and access various datasour
    Downloads: 0 This Week
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  • 11
    AntRunner is an OpenTool for JBuilder 4 to 9 , JBuilderX and JBuilder 2005 to use Ant within the IDE.
    Downloads: 0 This Week
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  • 12
    B++ will become a completely object orientated programming language based on a BASIC-like syntax. B++ applications will be stand-alone executable files (P-Code). B++ will offer an own data base interface and an own (OOP) framework providing API calls.
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    Downloads: 0 This Week
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  • 13
    BVRDE

    BVRDE

    A fully integrated development environment (IDE) for remote cross-pla

    The BVRDE is a fully integrated development environment (IDE) for remote cross-platform compiling and debugging of UNIX and LINUX console applications. BVRDE runs on a Windows platform, but compiles and debugs applications on UNIX systems.
    Downloads: 0 This Week
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  • 14
    A useful collection of batch files and scripts for daily purposes (backup, security, system management, etc.) and development
    Downloads: 0 This Week
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  • 15
    CrowTDE is an open source Tcl/Tk development environment written in Tcl/Tk. Its purposes is to provide a convenient environment for Tcl/Tk programmers. The CrowTDE is a Tcl/Tk IDE.
    Downloads: 0 This Week
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  • 16
    !!!!! Attention: This Site is closed go to the old homepage. Second Edition of DEV-PHP - IDE for development php-projects with php-gtk, mysql, ftp-client, cvs-client
    Downloads: 0 This Week
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  • 17
    DynamicCMS will be a simple web content management system, that can be extended by programmers without exactly knowing what's going on in the background. It should be as simple as possible for the users to maintain a even complex website using DynamicCMS.
    Downloads: 0 This Week
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  • 18
    osi: Examples for creating software written in C++ that uses GTK+2.0 (Win32 and Linux). Build environment: GNU autotools with g++; MSVC --- boolmin: A Boolean Minimizer for Win32, Linux, UNIX --- emacs: XEmacs extensions designed to work on many machines
    Downloads: 0 This Week
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  • 19
    FOPPS (feature oriented software product planning system) is a tool to help you to design your software product line. It provides different views (project plan, feature tree, ...) to maintain your core assets and applications.
    Downloads: 0 This Week
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  • 20
    FreshCode is a lean, easy to use (well, we hope it will be so) Integrated Development Environment specialised on C/C++ (other programming languages may follow).
    Downloads: 0 This Week
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  • 21
    FOOL is a Fuzzy system development tool with interactive 'foolproof' graphical user interface.
    Downloads: 0 This Week
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  • 22
    JAPI is a collection of Java libraries that help with various tasks like argument parsing, i18n/l10n, creating gui applications, as well as tools that demonstrate this.
    Downloads: 0 This Week
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  • 23
    Voyager JBoss OpenTool is an OT for JBuilder 6 Enterprise Edition. It integrates the JBoss application server the same way other application server are already integrated. Development and support was stopped since JBuilderX comes with JBoss support now.
    Downloads: 0 This Week
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  • 24
    JLinkCheck is an Ant Task written in Java for checking links in websites. It is not just checking one single page, but crawling a whole site like a spider, generating a report in XML and (X)HTML. JReptator will be its succesor with many more features
    Downloads: 0 This Week
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  • 25
    This aims at moving C++ libraries into the Java culture with the help of Swig, XML, and XSLT: Java, JNI, JavaHelp, JavaBeans, RMI,JDBC, Servlets, JSP, EnterpriseBeans, Jini, JMX, etc. is generated.
    Downloads: 0 This Week
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