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.

  • Top-Rated Free CRM Software Icon
    Top-Rated Free CRM Software

    216,000+ customers in over 135 countries grow their businesses with HubSpot

    HubSpot is an AI-powered customer platform with all the software, integrations, and resources you need to connect your marketing, sales, and customer service. HubSpot's connected platform enables you to grow your business faster by focusing on what matters most: your customers.
  • Claims Processing solution for healthcare practitioners. Icon
    Claims Processing solution for healthcare practitioners.

    Very easy to use for medical, dental and therapy offices.

    Speedy Claims became the top CMS-1500 Software by providing the best customer service imaginable to our thousands of clients all over America. Medical billing isn't the kind of thing most people get excited about - it is just a tedious task you have to do. But while it will never be a fun task, it doesn't have to be as difficult or time consumimg as it is now. With Speedy Claims CMS-1500 software you can get the job done quickly and easily, allowing you to focus on the things you love about your job, like helping patients. With a simple interface, powerful features to eliminate repetitive work, and unrivaled customer support, it's simply the best HCFA 1500 software available on the market. A powerful built-in error checking helps ensure your HCFA 1500 form is complete and correctly filled out, preventing CMS-1500 claims from being denied.
  • 1
    Dev-C++

    Dev-C++

    A free, portable, fast and simple C/C++ IDE

    A new and improved fork of Bloodshed Dev-C++
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    Downloads: 168,533 This Week
    Last Update:
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  • 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!
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    Downloads: 43,258 This Week
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  • 3
    Xiaomi.eu Multilang MIUI ROMs

    Xiaomi.eu Multilang MIUI ROMs

    OFFICIAL mirror of MIUI Multilang ROM by https://xiaomi.eu/

    Included languages: English (en.miui.com, xiaomi.eu) Chinese (miui.com) Polish (Acid, miuipolska.pl) Slovak (ingbrzy, https://miuios.cz) Czech (VMach, https://miuios.cz) Bulgarian (Global) Hungarian (vagyula, miui.hu) French (Global) Swedish (Global) Russian (Global) Ukrainian (Global) Belorussian (Global) Croatian (Masva, MIUI Adria) Vietnamese (Belmont-Gabriel) Italian (miui.it) Greek (Global) Norwegian (Global) Dutch (cueie, mannyribo, redmaner) Spanish (nosijf982) Turkish (suatsari) Brazilian-Portuguese (Global, Feurrado, Lobianco) Portuguese (KcNirvana, Lippe35) Hebrew (Global) Romanian (ashtefan) German (muhamed89, cp82, dahool2016, and more) Catalan (deivids84) Korean (cjhyuky, bradly1, xiaomiqm) Slovenian (bostjan2016) Serbian (dudjaa) Thai (Global) Finnish (dogiex) Arabic (Global) Japanese (ScratchBuild) Burmese (Global) Danish (Global)
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    Downloads: 44,085 This Week
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  • 4
    WinMerge

    WinMerge

    Windows visual diff and merge for files and directories

    WinMerge is a Windows tool for visual difference display and merging, for both files and directories. It is highly useful for determining what has changed between file versions, and then merging those changes. WinMerge has Unicode support, Flexible syntax coloring editor, Visual SourceSafe integration, and Windows Shell integration. Regexp filtering for filenames and lines. Side-by-side line difference and highlights differences inside lines. A file map shows the overall file differences in a location pane. The user interface is translated into several languages.
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    Downloads: 34,983 This Week
    Last Update:
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  • Case Management Software for Social Services Icon
    Case Management Software for Social Services

    For human services organizations looking for case management software

    Collaborate is customizable case management software for non-profits and social services agencies with teams of 5+ staff.
  • 5
    Dev-C++ for Windows 10/8/7

    Dev-C++ for Windows 10/8/7

    A fast, portable, simple, and free C/C++ IDE

    Coding Boot Camp Learning to program? Check out the free boot camp from Embarcadero which runs from Monday, August 22nd to Friday, August 26th. https://learndelphi.org/boot-camp-2022/ Embarcadero Dev-C++ is a new and improved fork (sponsored by Embarcadero) of Bloodshed Dev-C++ and Orwell Dev-C++. It is a full-featured Integrated Development Environment (IDE) and code editor for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler Collection) as its compiler. Embarcadero Dev-C++ can also be used in combination with Cygwin or any other GCC based compiler. Embarcadero Dev-C++ is built using the latest version of Embarcadero Delphi. Embarcadero Dev-C++ has a low memory footprint because it is a native Windows application and does not use Electron. Optimized for parallel compilation on modern multi-core machines. GitHub Project: https://github.com/Embarcadero/Dev-Cpp/ Sponsored by Embarcadero: https://www.embarcadero.com/free-tools/dev-cpp
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    Downloads: 14,484 This Week
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  • 6
    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: 5,939 This Week
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  • 7
    OmegaT - multiplatform CAT tool

    OmegaT - multiplatform CAT tool

    The free computer aided translation (CAT) tool for professionals

    OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.
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    Downloads: 1,638 This Week
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  • 8
    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: 914 This Week
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  • 9
    Tiki Wiki CMS Groupware

    Tiki Wiki CMS Groupware

    The Free / Libre / Open Source Web App with the most built-in features

    "Software made the wiki way" A full-featured, web-based, tightly integrated, all-in-one Wiki+CMS+Groupware, Free Source Software (GNU/LGPL), using PHP, MySQL, Zend Framework, jQuery and Smarty. Tiki can be used to create all kinds of Web applications, sites, portals, knowledge base, intranets, and extranets. Tiki is the Open Source Web Application with the most built-in features. Highly configurable and modular, all features are optional and administered via a web-based interface. Major features include a wiki engine, news articles, discussion forums, newsletters, blogs, file galleries, bug and issue trackers (form generator), polls/surveys and quizzes, banner management system, calendar, maps, mobile , RSS feeds, category system, tags, an advanced themeing engine, spreadsheet, drawings, inter-user messaging, menus, advanced permission system for users and groups, search engine, external authentication, etc. Security reports: https://security.tiki.org
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    Downloads: 231 This Week
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  • RMM Software | Remote Monitoring Platform and Tools Icon
    RMM Software | Remote Monitoring Platform and Tools

    Best-in-class automation, scalability, and single-pane IT management.

    Don’t settle when it comes to managing your clients’ IT infrastructure. Exceed their expectations with ConnectWise RMM, our MSP RMM software that provides proactive tools and NOC services—regardless of device environment. With the number of new vulnerabilities rising each year, smart patching procedures have never been more important. We automatically test and deploy patches when they are viable and restrict patches that are harmful. Get better protection for clients while you spend less time managing endpoints and more time growing your business. It’s tough to locate, afford, and retain quality talent. In fact, 81% of IT leaders say it’s hard to find the recruits they need. Add ConnectWise RMM, NOC services and get the expertise and problem resolution you need to become the advisor your clients demand—without adding headcount.
  • 10
    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.
    Leader badge
    Downloads: 376 This Week
    Last Update:
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  • 11
    PHPFusion

    PHPFusion

    Award-winning lightweight Open Source Content Management System (CMS)

    PHPFusion is an award-winning open source content management system (CMS). PHPFusion is written in PHP and MySQL and includes a simple, comprehensive administration system. Demos : https://demos.php-fusion.co.uk/
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    Downloads: 174 This Week
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  • 12
    Guido van Robot Educational Programming Language
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    Downloads: 454 This Week
    Last Update:
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  • 13
    Pootle, Virtaal & Translate Toolkit

    Pootle, Virtaal & Translate Toolkit

    Localization tools built by localizers for localizers

    Tools for localization: - Pootle: web based translation management system. - Virtaal: Computer Aided Translation (CAT) tool. - Translate Toolkit: QA, format conversion and support (PO, Java .properties, OpenOffice, Mozilla, XLIFF, TMX, TBX, CSV, Qt .ts).
    Leader badge
    Downloads: 107 This Week
    Last Update:
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  • 14
    TortoiseCVS is an extension for Microsoft Windows Explorer that makes using CVS fun and easy. Features include: coloured icons, tight integration with SSH, and context-menu interactivity.
    Downloads: 94 This Week
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  • 15
    SuiteCRM translations

    SuiteCRM translations

    SuiteCRM translations - language packs

    SuiteCRM - archive for SuiteCRM language pack. Note: the latest language packs are only available directly from Crowdin project at https://crowdin.com/project/suitecrmtranslations FAQ: Install a new language - https://docs.suitecrm.com/admin/installation-guide/languages/install-a-new-language/
    Leader badge
    Downloads: 161 This Week
    Last Update:
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  • 16
    ZK - Simply Ajax and Mobile
    Ajax+Mobile Java Web framework. With 200+ Ajax components and event-driven, Ajax/RIA apps are as effortless and rich as desktop apps and HTML/XUL pages. Support JSP/JSF/JavaEE/Spring, Ajax Push and Client-fusion; also Java/Groovy/Python/JavaScript.
    Downloads: 31 This Week
    Last Update:
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  • 17
    Dev-PHP IDE
    Dev-PHP is a well-featured IDE for PHP. Fast and powerful, it is easy to use and has a lot of cool features : class browser, scripts preview, integration with PHP parsers, PHP-GTK library, and Xdebug of course. Dev-PHP-usb slips even into your pocket.
    Downloads: 28 This Week
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  • 18
    Gambas
    A Graphical Developement Environment based on a Basic Interpreter with object extensions.
    Downloads: 16 This Week
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  • 19
    PHP5 RAD and object oriented PHP framework for building event-driven stateful web applications. Based on Zend Framework, features tableless HTML, multiple databases, accesskey support, auto data type recognition, transparent AJAX, UTF-8, i18n/l10n.
    Downloads: 9 This Week
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  • 20
    Open Source Web Application Framework for the Microsoft ASP.NET platform.
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    Downloads: 3 This Week
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  • 21
    PGRFileManager is a free (MIT license) ajax-based file manager you can use standalone or with FCKEditor & CKEditor
    Downloads: 1 This Week
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  • 22
    AndroidRate

    AndroidRate

    Library to help you promote your Android app

    AndroidRate is a library to help you promote your Android app by prompting users to rate the app after using it for a few days.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Gaphor is a UML modeling environment written in Python. Gaphor is small and very extensible. The repository is located at http://github.com/gaphor/gaphor.
    Downloads: 0 This Week
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  • 24
    This is a HTML, XHTML and XML validator and repairer based on PHP
    Downloads: 0 This Week
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  • 25
    Notepad++

    Notepad++

    Notepad++ project is moving to GitHub:

    Notepad++ project is moving to GitHub: https://github.com/notepad-plus-plus/notepad-plus-plus
    Downloads: 0 This Week
    Last Update:
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