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

  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
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    Downloads: 2,264,890 This Week
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  • 2
    Code::Blocks

    Code::Blocks

    A free C, C++ and Fortran IDE

    Code::Blocks is a free, open-source, cross-platform C, C++ and Fortran IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable. Finally, an IDE with all the features you need, having a consistent look, feel and operation across platforms. Built around a plugin framework, Code::Blocks can be extended with plugins. Any kind of functionality can be added by installing/coding a plugin. For instance, compiling and debugging functionality is already provided by plugins! We hope you enjoy using Code::Blocks! The Code::Blocks Team
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    Downloads: 58,461 This Week
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  • 3
    NSIS: Nullsoft Scriptable Install System

    NSIS: Nullsoft Scriptable Install System

    Windows installer development tool

    NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
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    Downloads: 53,969 This Week
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  • 4
    GnuWin

    GnuWin

    Provides native Win32 open source ports and utilities

    GnuWin provides Win32-versions of GNU tools, or tools with a similar open source licence. The ports are native ports, relying only on libraries provided with any modern 32-bits MS-Windows operating system, such as 2000 / XP / Vista / 7
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    Downloads: 39,857 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • 5
    JAGS is Just Another Gibbs Sampler. It is a program for the statistical analysis of Bayesian hierarchical models by Markov Chain Monte Carlo.
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    Downloads: 2,897 This Week
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  • 6

    gcc-win64

    x64 build of GCC for Windows

    x64 C/C++ compiler for Windows using (unofficial build): - gmp - mpfr - mpc - isl - cloog - mingw-w64 - gcc - seh You need at least core2 command set support to run this application. Note that every version with bundled gdb needs at least Windows 7.
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    Downloads: 3,247 This Week
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  • 7
    A home for additional useful tasks and types for Ant (http://ant.apache.org).
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    Downloads: 1,229 This Week
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  • 8
    CMake

    CMake

    Cross-platform tool to build, test and package software

    CMake is an open-source, cross-platform family of tools designed to build, test and package software. CMake is used to control the software compilation process using simple platform and compiler independent configuration files, and generate native makefiles and workspaces that can be used in the compiler environment of your choice. The suite of CMake tools were created by Kitware in response to the need for a powerful, cross-platform build environment for open-source projects such as ITK and VTK. CMake is part of Kitware’s collection of commercially supported open-source platforms for software development and integrates with CDash to provide a comprehensive suite of tools. CDash is the testing server that aggregates, analyzes, and displays the results of software testing processes submitted from clients located around the world.
    Downloads: 178 This Week
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  • 9
    WinAVR
    WinAVR (tm) is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. Includes the GNU GCC compiler for C and C++.
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    Downloads: 669 This Week
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  • Paessler - Monitor Your Whole Network in Minutes Icon
    Paessler - Monitor Your Whole Network in Minutes

    Auto-discovery finds your devices and deploys pre-configured sensors instantly. No project plan required, just visibility from day one.

    Waiting weeks for a monitoring rollout isn't an option when infrastructure doesn't stop running. PRTG's auto-discovery scans your network and suggests from over 200 pre-configured sensor types, so you're watching servers, applications and devices within minutes, not after a multi-week deployment. Enterprise-strength monitoring, without the enterprise complexity. Start your free trial today.
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  • 10
    POCO

    POCO

    Cross-platform C++ libraries for building network applications

    The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems. Whether building automation systems, industrial automation, IoT platforms, air traffic management systems, enterprise IT application and infrastructure management, security and network analytics, automotive infotainment and telematics, financial or healthcare, C++ developers have been trusting the POCO C++ Libraries for 15+ years and deployed it in millions of devices. Create software for connected embedded devices running Linux, Windows Embedded or QNX. Create cross-platform backends in C++ for iOS and Android applications and combine it with a native or HTML5-based user interface. Create software for IoT devices that talk to cloud backends over HTTP REST APIs. See macchina.io for an IoT platform built with POCO.
    Downloads: 72 This Week
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  • 11
    Raspberry Pi GCC Toolchains

    Raspberry Pi GCC Toolchains

    CI maintained precompiled GCC ARM/ARM64 Toolchains for Raspberry Pi

    This project provides latest Raspberry Pi hardware optimized GCC Cross Compiler & Native (ARM & ARM64) automated Build-Scripts and Precompiled standalone Toolchains binaries, that will save you tons of time & thereby helps you get quickly started with software development on Pi.
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    Downloads: 164 This Week
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  • 12
    SMC - The State Machine Compiler

    SMC - The State Machine Compiler

    Translates state machine into a target programming language.

    SMC takes a state machine stored in a .sm file and generates a State pattern in 14 programming languages. Includes: default transitions, transition args, transition guards, push/pop transitions and Entry/Exit actions. See User Manual for more info.
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    Downloads: 84 This Week
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  • 13
    JSmooth creates standard Windows executable files (.exe) that smartly launch java applications. It makes java deployment much smoother and user-friendly, as it is able to find and run Java VMs by itself, or help the user get one if none are available.
    Downloads: 67 This Week
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  • 14

    makepp

    GNU make compatible but reliable and simpler build tool

    Makepp, a build program which has a number of features that allow for reliable builds and simpler build files, is a drop-in replacement for GNU make. It supports almost all of the syntax that GNU make supports, and can be used with makefiles produced by utilities such as automake. It is called makepp (or make++) because it was designed with special support for C++, which has since been extended to other languages like Swig or embedded SQL. Some features that makepp adds to make are: greatly improved handling of builds that involve multiple makefiles (recursive make is no longer necessary); automatic scanning for include files; rebuild triggered if build command changes; checksum-based signature methods for reliable builds, smart enough to ignore whitespace or comment changes; extensibility through Perl programming (within your makefile); repositories (automatically importing files from another tree); build caches (not recompiling identically what a user of the same cache already did
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    Downloads: 102 This Week
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  • 15

    coan

    "The C preprocessor chainsaw"

    Coan is a software engineering tool for analysing preprocessor-based configurations of C or C++ source code. Its principal use is to simplify a body of source code by eliminating any parts that are redundant with respect to a specified configuration.
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    Downloads: 35 This Week
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  • 16
    RDM

    RDM

    Cross-platform GUI management tool for Redis

    Cross-platform open source database management tool for Redis. RDM is easy-to-use GUI tool available for Windows, Linux, MacOS and iPadOS. Analyse your Redis ® memory usage with RDM and remove obsolete data with bulk removal. RDM supports all latest Redis ® features: ACL, Streams, Cluster, Sentinel, ReJSON module, HyperLogLog, etc. Build-in TLS, SSH and TLS-over-SSH tunneling for easy and secure access to any redis-server. RDM works with Amazon ElastiCache, Microsoft Azure Redis Cache, Digital Ocean and other Redis ® clouds. RDM displays JSON, MessagePack, CBOR, PHP, Pickle, numpy.Array, pandas.DataFrame and binary data in human readable form and supports Native Formatters. RDM offers you an easy-to-use GUI to access your Redis ® databases and perform some basic operations. RDM allows to perform bulk operations which simplifies developer daily routines.
    Downloads: 4 This Week
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  • 17
    A Windows Installer Database To XML Bi-Directional Converter. The command line tool msi2xml converts Windows Installer Databases (.msi) to text based XML files. The complementary tool xml2msi reconstructs the .msi from the XML file.
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    Downloads: 57 This Week
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  • 18
    LuaEdit is an IDE/Text Editor/Debugger for the Lua language. Its interface looks like MS Visual Studio .Net� and includes syntax highlighting, code completion, advance breakpoint management, efficient search engines, etc. Client under GPL and server (core debugger) under LGPL.
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    Downloads: 25 This Week
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  • 19
    IceTea allows you to convert your old PSX CD's for use in the Sony PSP system. It is also capable of creating the corresponding ingame manuals as well as changing the menu appearance.
    Downloads: 20 This Week
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  • 20
    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: 11 This Week
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  • 21
    ReDex

    ReDex

    A bytecode optimizer for Android apps

    ReDex is an Android bytecode (dex) optimizer originally developed at Facebook. It provides a framework for reading, writing, and analyzing .dex files, and a set of optimization passes that use this framework to improve the bytecode. An APK optimized by ReDex should be smaller and faster than its source. Redex provides a framework for reading, writing, and analyzing .dex files, and a set of optimization passes that use this framework to improve the bytecode. An APK optimized by Redex should be smaller and faster. Fewer bytes also means faster download times, faster install times, and lower data usage for cell users. Lastly, less bytecode also typically translates into faster runtime performance. Redex has deep integration with Buck where your Redex config is passed as a parameter to the Buck android_binary rule when generating the APK.
    Downloads: 2 This Week
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  • 22
    cbp2make
    Makefile generation tool for Code::Blocks IDE
    Downloads: 9 This Week
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  • 23
    Source Navigator NG is a source code analysis tool. With it, you can edit your source code, display relationships between classes and functions and members, and display call trees. You can navigate your source code and easily get to declarations or implementations of functions, variables and macros (commonly called "symbols") which helps you discovering and mapping unknown source code for enhancement or maintenance tasks.
    Downloads: 8 This Week
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  • 24
    Software Development Kit for the Nintendo(tm) Gameboy Advance(tm) based on GCC.
    Downloads: 33 This Week
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  • 25
    KonsolScript: Automate and Orchestrate

    KonsolScript: Automate and Orchestrate

    Embeddable scripting runtime for live behavior, AI, and automation.

    KonsolScript is an embeddable scripting runtime for games, tools, automation, and AI-driven applications. Add a live scripting layer to any C++ application. Hot-reload behavior, patch running apps, and orchestrate AI workflows - without rebuilding or redeploying the binary. Ship once. Evolve forever. Key capabilities: - Embed into any C++ app with a single header - Hot-reload scripts at runtime without restarting - AI-safe: validate or reject scripts before execution - Orchestrate LLMs (OpenAI, Claude, Gemini, Ollama) in .ks scripts - Built-in: String, File, JSON, CSV, Math, Regex, and more - Plugins: HTTP, SQLite, MySQL, TCP, Redis, Crypto, JWT, Zip - Push behavior updates to remote instances over TCP Use cases: - Scriptable game engines (hot-patch rules mid-session) - AI event bridges (natural language to live app behavior) - Automation pipelines (CI, log triage, file processing) - LLM orchestration workflows Docs: https://konsolscript.sf.net/kookbook.html
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    Downloads: 8 This Week
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