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.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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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
    SAP NetWeaver Server Adapter for Eclipse

    SAP NetWeaver Server Adapter for Eclipse

    Integrates Eclipse with the SAP NetWeaver Application Server

    Integrates Eclipse with the SAP NetWeaver Application Server.
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    Downloads: 352,075 This Week
    Last Update:
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  • 2
    Boost C++ Libraries

    Boost C++ Libraries

    Free peer-reviewed portable C++ source libraries

    Boost provides free portable peer-reviewed C++ libraries. The emphasis is on portable libraries which work well with the C++ Standard Library. See http://www.boost.org
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    Downloads: 38,498 This Week
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  • 3
    Comgt is a command line tool for controlling, configuring and interacting with Option Wireless 3G and 2G ( HSDPA, UMTS, EDGE, GPRS, GSM) data devices within the Linux environment.
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    Downloads: 33,894 This Week
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  • 4
    asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.
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    Downloads: 12,304 This Week
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  • Stop vibe-debugging. Icon
    Stop vibe-debugging.

    Plug Claude into your app's actual errors.

    AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
    Free 30 days.
  • 5
    The goal of the project is now to develop a user library called libpfm4 to help setup performance events for use with the perf_events Linux kernel interface. The development of the perfmon kernel subsystem, libpfm and pfmon has now stopped.
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    Downloads: 12,843 This Week
    Last Update:
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  • 6
    Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
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    Downloads: 9,535 This Week
    Last Update:
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  • 7
    LibUsbDotNet C# USB Library
    .NET C# USB library for WinUSB, LibUsb-Win32, and libusb-1.0. Using the common device classes, applications work with all operating systems and drivers without modification. Lots of example code. Open source software at sourceforge.net.
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    Downloads: 8,918 This Week
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  • 8
    Small Device C Compiler (SDCC)

    Small Device C Compiler (SDCC)

    The Small Device C Compiler (SDCC), targeting 8-bit architectures

    SDCC is a retargettable, optimizing standard C (ANSI C89 / ISO C90, ISO C99, ISO C11 / C17, ISO C23, ISO C2y) compiler that targets a growing list of architectures: STM8, MCS-51, DS390, HC08, S08, 6502, 65C02, Z80, Z80N, Z180, Rabbit, SM83, TLCS-90, eZ80, R800, Padauk PDK14 and PDK15 microprocessors. There also is incomplete support for the Microchip PIC16 and PIC18 and the Padauk PDK13.
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    Downloads: 5,446 This Week
    Last Update:
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  • 9
    DxWnd

    DxWnd

    Window hooker to run fullscreen programs in window and much more...

    Windows hooker - intercepts system calls to make Win32 programs run in a window, to enhance application compatibility, to enhance video modes, to stretch timing and emulate CD disk data and audio tracks. It is typically very useful to run old Windows games.
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    Downloads: 4,470 This Week
    Last Update:
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  • Compliant and Reliable File Transfers Backed by Top Security Certifications Icon
    Compliant and Reliable File Transfers Backed by Top Security Certifications

    Cerberus FTP Server delivers SOC 2 Type II certified security and FIPS 140-2 validated encryption.

    Stop relying on non-certified, legacy file transfer tools that creak under the weight of modern security demands. Get full audit trails, advanced access controls and more supported by an award-winning team of experts. Start your free 25-day trial today.
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  • 10

    Notepad++ Plugins

    A plugin to improve Notepad++

    Notepad++ plugins is a collection of tools which plays a role of completion for Notepad++. This project contains Explorer, Function List, Hex Editor, Spell Checker and a console program NppExec. Other plugin developers are invited to share their projects
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    Downloads: 4,376 This Week
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  • 11
    A home for additional useful tasks and types for Ant (http://ant.apache.org).
    Leader badge
    Downloads: 3,014 This Week
    Last Update:
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  • 12
    SCons

    SCons

    A software construction tool

    SCons is a software construction tool that is a superior alternative to the classic "Make" build tool that we all know and love. SCons is implemented as a Python script and set of modules, and SCons "configuration files" are actually executed as Python scripts. This gives SCons many powerful capabilities not found in other software build tools. We make SCons available in three distinct packages, for different purposes. - The scons package is the basic package to install SCons. You don't need any other package if you just want to try out SCons. - The scons-local package executes as a SCons standalone, out of a local directory. It's intended to be dropped in to and shipped with packages of other software for builds with SCons but not as a required install. - The scons-src package is the complete source tree, including everything we use to package SCons and all of the regression tests.
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    Downloads: 2,487 This Week
    Last Update:
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  • 13
    A collection of autoconf macros, plus an autogen.sh script that can be used with them.
    Leader badge
    Downloads: 9,674 This Week
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  • 14
    A free OpenGL utility toolkit, the open-sourced alternative to the GLUT library.
    Leader badge
    Downloads: 1,055 This Week
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  • 15
    PHP QR Code

    PHP QR Code

    Create QR Codes in PHP

    PHP QR Code is open source (LGPL) library for generating QR Code, 2-dimensional barcode. Based on libqrencode C library, provides API for creating QR Code barcode images (PNG, JPEG thanks to GD2). Implemented purely in PHP.
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    Downloads: 772 This Week
    Last Update:
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  • 16
    A comprehensive software suite for reading barcodes. Supports EAN/UPC, Code 128, Code 39, Interleaved 2 of 5 and QR Code. Includes libraries and applications for decoding captured barcode images and using a video device (eg, webcam) as a barcode scanner.
    Leader badge
    Downloads: 745 This Week
    Last Update:
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  • 17
    FreeBASIC Compiler
    Open-source, free, multi-platform BASIC compiler, with syntax similar MS-QuickBASIC (including the GFX statements), that adds new features such as pointers, unsigned data types, inline assembly, a pre-processor and many others.
    Leader badge
    Downloads: 871 This Week
    Last Update:
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  • 18
    GnuCOBOL

    GnuCOBOL

    A free COBOL compiler

    GnuCOBOL (formerly OpenCOBOL) is a free, modern COBOL compiler. GnuCOBOL implements a substantial part of the COBOL 85, X/Open COBOL and newer ISO COBOL standards (2002, 2014, 2023), as well as many extensions included in other COBOL compilers (IBM COBOL, MicroFocus COBOL, ACUCOBOL-GT and others). GnuCOBOL translates COBOL into C and internally compiles the translated code using a native C compiler. Build COBOL programs on various platforms, including GNU/Linux, Unix, Mac OS X, and Microsoft Windows. GnuCOBOL has also been built on HP/UX, z/OS, SPARC, RS6000, AS/400, along with other combinations of machines and operating systems. Copyright 2001-2024 Free Software Foundation, Inc. The cobc compiler is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the FSF; either version 3, or (at your option) any later version. The libcob run time support source tree is licensed under the GNU LGPL.
    Leader badge
    Downloads: 728 This Week
    Last Update:
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  • 19

    OpenOCD - Open On-Chip Debugger

    The Open On-Chip Debugger

    The "Open On-Chip Debugger" provides JTAG/SWD access from GDB (or directly with TCL scripts) to processors with ARM and MIPS based cores. See website for full list of supported targets.
    Leader badge
    Downloads: 691 This Week
    Last Update:
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  • 20
    SharpDevelop

    SharpDevelop

    A free IDE for C#, VB.NET, & Boo projects on Microsoft's .NET platform

    SharpDevelop is the open-source IDE for the .NET platform. Write applications in languages including C#, VB.NET, F#, IronPython and IronRuby, as well as target rich and reach: Windows Forms or WPF, as well as ASP.NET MVC and WCF. It starts from USB drives, supports read-only projects, comes with integrated unit and performance testing tools, Git, NuGet and a lot more features that make you productive as a developer.
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    Downloads: 443 This Week
    Last Update:
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  • 21
    Check: a unit test framework for C
    Leader badge
    Downloads: 396 This Week
    Last Update:
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  • 22
    tcllib is a Tcl-only library of standard routines for Tcl (no compiling required). This project also houses the CVS modules for BWidgets, tclbench, mclistbox, tclapps, and tklib. All of these are deprecated in favor of the fossil repositories found at the sites listed below. Bug reports to https://core.tcl.tk/tcllib https://core.tcl.tk/tklib https://core.tcl.tk/tclapps https://core.tcl.tk/bwidget https://core.tcl.tk/tclbench https://core.tcl.tk/mclistbox https://core.tcl.tk/widget Follow code development at the same sites.
    Leader badge
    Downloads: 368 This Week
    Last Update:
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  • 23
    Munt
    A multi-platform software synthesiser emulating (somewhat inaccurately) pre-GM MIDI devices such as the Roland MT-32, CM-32L, CM-64 and LAPC-I. In no way endorsed by or affiliated with Roland Corp. Source hosted at: http://www.github.com/munt/
    Leader badge
    Downloads: 337 This Week
    Last Update:
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  • 24
    CLIPS Rule Based Programming Language
    CLIPS is a forward-chaining rule-based programming language written in C that also provides procedural and object-oriented programming facilities.
    Leader badge
    Downloads: 304 This Week
    Last Update:
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  • 25
    WillowTree#
    WillowTree# is a save editor for Borderlands written in C#. It can read, edit, and convert savegame files from PC, PS3, and Xbox 360 versions of the Borderlands game. It has a storage locker that can be used to transfer items between characters.
    Leader badge
    Downloads: 271 This Week
    Last Update:
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