Open Source Software Development Software

Browse free open source Software Development software and projects below. Use the toggles on the left to filter open source Software Development software by OS, license, language, programming language, and project status.

  • 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.
    Start Free
  • 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.
    Start Free
  • 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.
    Leader badge
    Downloads: 2,273,886 This Week
    Last Update:
    See Project
  • 2
    TortoiseSVN

    TortoiseSVN

    An Apache SVN client, right where you need it most

    TortoiseSVN is a Subversion (SVN) client, implemented as a windows shell extension. Which means it's available right where you need it: in the Windows file explorer. It's intuitive and easy to use, since it doesn't require the Subversion command line client to run. Simply the coolest Interface to (Sub)Version Control!
    Leader badge
    Downloads: 295,547 This Week
    Last Update:
    See Project
  • 3
    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
    Leader badge
    Downloads: 41,262 This Week
    Last Update:
    See Project
  • 4

    MinGW-w64 - for 32 and 64 bit Windows

    A complete runtime environment for gcc

    The mingw-w64 project is a complete runtime environment for gcc to support binaries native to Windows 64-bit and 32-bit operating systems.
    Leader badge
    Downloads: 43,434 This Week
    Last Update:
    See Project
  • 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.
    Try Free
  • 5
    Library and command line tools for XZ and LZMA compressed files
    Leader badge
    Downloads: 78,103 This Week
    Last Update:
    See Project
  • 6
    Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, etc. Expect is also useful for testing these same applications.
    Leader badge
    Downloads: 5,075 This Week
    Last Update:
    See Project
  • 7

    Steel Bank Common Lisp

    Common Lisp compiler and runtime

    A high performance Common Lisp compiler. In addition to standard ANSI Common Lisp, it provides an interactive environment including an a debugger, a statistical profiler, a code coverage tool, and many other extensions.
    Leader badge
    Downloads: 3,117 This Week
    Last Update:
    See Project
  • 8

    LOIC

    A network stress testing application

    Low Orbit Ion Cannon. The project only keeps and maintains (bug fixing) the code written by the original author - Praetox, but is not associated or related to it. DISCLAIMER: USE ON YOUR OWN RISK. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER OR CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES.
    Downloads: 1,257 This Week
    Last Update:
    See Project
  • 9
    TDM-GCC Compiler

    TDM-GCC Compiler

    GCC for 32-bit and 64-bit Windows with a real installer & updater

    TDM-GCC is now hosted on Github at https://jmeubank.github.io/tdm-gcc/. The most recent stable releases from the GCC compiler project, for 32-bit and 64-bit Windows, cleverly disguised with a real installer & updater.
    Leader badge
    Downloads: 872 This Week
    Last Update:
    See Project
  • 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.
    Start Free
  • 10
    Re2c is a tool for writing very fast and very flexible scanners. Unlike any other such tool, re2c focuses on generating high efficient code for regular expression matching. As a result this allows a much broader range of use than any traditional lexer.
    Leader badge
    Downloads: 606 This Week
    Last Update:
    See Project
  • 11
    A command line tool to create C files from binary files. It can be used to embed the contents of external files to a C or C++ program.
    Leader badge
    Downloads: 349 This Week
    Last Update:
    See Project
  • 12

    MinGW-builds

    Dual-target (32 & 64-bit) MinGW-W64 compilers for 32 & 64-bit Windows

    Projects joined MinGW-W64, and the new builds will be available on the MinGW-W64 site: https://sourceforge.net/projects/mingw-w64
    Leader badge
    Downloads: 160 This Week
    Last Update:
    See Project
  • 13
    Darknet YOLO

    Darknet YOLO

    Real-Time Object Detection for Windows and Linux

    This is YOLO-v3 and v2 for Windows and Linux. YOLO (You only look once) is a state-of-the-art, real-time object detection system of Darknet, an open source neural network framework in C. YOLO is extremely fast and accurate. It uses a single neural network to divide a full image into regions, and then predicts bounding boxes and probabilities for each region. This project is a fork of the original Darknet project.
    Downloads: 33 This Week
    Last Update:
    See Project
  • 14
    Utilities for general- and special-purpose documentation. Includes reStructuredText, the easy to read, easy to use, what-you-see-is-what-you-get plaintext markup language.
    Leader badge
    Downloads: 138 This Week
    Last Update:
    See Project
  • 15
    PDCurses
    An implementation of the curses library for Windows, DOS, OS/2, X11 and SDL.
    Leader badge
    Downloads: 67 This Week
    Last Update:
    See Project
  • 16

    Practically Random

    statistical tests & psuedo- random number generators (RNGs, PRNGs)

    Randon number generation & testing. The best suite of statistical tests for fast PRNGs anywhere. Multithreaded for speed, command line tools for automation, no upper limit on data size. Also, a variety of C++ pseudo-random number generators with well designed interfaces aimed at practical uses, not just research.
    Leader badge
    Downloads: 66 This Week
    Last Update:
    See Project
  • 17
    Nuklear

    Nuklear

    A single-header ANSI C gui library

    Nuklear is an open source minimal-state, immediate-mode graphical user interface (GUI) toolkit written in ANSI C. It is designed to be lightweight, portable, and self-contained, requiring no external dependencies. The library is easy to integrate into existing applications by including a single header file, making it popular for game development, prototypes, and embedded systems. Nuklear supports a variety of UI elements such as windows, buttons, sliders, and text inputs, with customizable styling for flexibility. Its immediate-mode design emphasizes simplicity and low memory usage, enabling developers to create responsive interfaces with minimal overhead. As a public domain project, Nuklear is widely adopted in both professional and hobbyist projects for quick GUI development.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 18
    LOIC-0

    LOIC-0

    A NETWORK STRESS TOOL BASED ON PRAETOX LOIC

    Low Orbit Ion Cannon - 0 (LOIC-0) The original Low Orbit Ion Cannon with interface improvements. ALSO NOTED VERSION 1.0 OF LOIC-0 IS VERSION 1.2 OF LOIC AND SO ON. DISCLAIMER: USE ON YOUR OWN RISK. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER OR CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES THIS TOOL IS RELEASED WITH NO WARRANTY AT ALL. TAGS: LOIC,Low Orbit Ion Cannon, network, stress test, security software, network tool, Windows,Linux, LOWC, Low Orbit Web Cannon, network, stress testing, load testing, server load testing, server testing.
    Leader badge
    Downloads: 43 This Week
    Last Update:
    See Project
  • 19
    MSYS2 snapshot

    MSYS2 snapshot

    MSYS2 old packages

    Hiyushki! This is the latest snapshot of MSYS2 package repository captured before removing old packages in 2020. Backup of the original repo https://msys2.sourceforge.io Snapshot packages are not available by default for download using pacman due to incorrect urls in pacman-mirrors package. To get it work you need download and install alternative package https://sourceforge.net/projects/msys2-snapshot/files/pacman-mirrors-snapshot-20240724-1-any.pkg.tar.xz with actual mirrorlists. Link: https://msys2-snapshot.sourceforge.io
    Leader badge
    Downloads: 105 This Week
    Last Update:
    See Project
  • 20
    Integrated development environment for the FreeBASIC compiler.
    Downloads: 23 This Week
    Last Update:
    See Project
  • 21
    DRAKON Editor

    DRAKON Editor

    A free cross-platform editor for the DRAKON visual language.

    DRAKON is a diagram language developed within the Russian space program. Its primary objective is presenting complex software systems in a way which is easy to understand by humans. DRAKON's motto: took a glance - understood at once. DRAKON Editor helps software architects, quality specialists and developers. Architects and quality assurers can express a high-level view of how their product works. DRAKON serves them to explain the dynamics of a software system. Software engineers can use DRAKON Editor to build algorithms in Go, Java, Processing.org, D, C#, C, C++, Python, Tcl, Javascript, Erlang and Lua.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 22
    HC Software serves as an incubator for Jason Rohrer's mini-projects. These projects are not large enough to warrant their own SourceForge projects.
    Downloads: 31 This Week
    Last Update:
    See Project
  • 23
    MedGui Reborn & MetroMed

    MedGui Reborn & MetroMed

    MedGui Reborn is a frontend (GUI) for Mednafen multi emulator.

    MedGui Reborn is a frontend (GUI) for Mednafen multi emulator, written in Microsoft Visual Studio Community. MetroMed is a appendix to MedGui Reborn and offer a modern "metro" style GUI for Mednafen. The programs are the evolution of MedGui and includes more features:
    Leader badge
    Downloads: 84 This Week
    Last Update:
    See Project
  • 24
    Borland-style CONIO (COnsole Input Output) implementation for Win32 MinGW/Dev-C++.
    Downloads: 27 This Week
    Last Update:
    See Project
  • 25
    HX DOS

    HX DOS

    HX DOS extender

    I'm preserving Japheth's MS-DOS extender. It features 16bit, and 32bit capabilities with the ability to run 16bit OS/2 program, and 32bit Win32 code on Vanilla MS-DOS.
    Leader badge
    Downloads: 64 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
MongoDB Logo MongoDB