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.

  • Business Texting and Text Message Marketing Solutions - Textellent Icon
    Business Texting and Text Message Marketing Solutions - Textellent

    Textellent's robust business texting services provide SMS and MMS capability for customer service, sales, and marketing texting programs.

    Textellent's business texting solution makes designing, managing, measuring, and integrating SMS and MMS campaigns easy. Whether used for customer service, sales, or marketing, Textellent supports your customer journey with an easy-to-use service that text-enables local business lines and serves businesses of any size. Robust scheduling and appointment reminders are also available, as are keywords and shortcodes for easy opt-in programs with TCPA compliance supported by AI.
  • Powering the next decade of business messaging | Twilio MessagingX Icon
    Powering the next decade of business messaging | Twilio MessagingX

    For organizations interested programmable APIs built on a scalable business messaging platform

    Build unique experiences across SMS, MMS, Facebook Messenger, and WhatsApp – with our unified messaging APIs.
  • 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: 159,963 This Week
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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: 40,778 This Week
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  • 3
    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: 34,009 This Week
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  • 4
    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: 14,606 This Week
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  • Control remote support software for remote workers and IT teams Icon
    Control remote support software for remote workers and IT teams

    Raise the bar for remote support and reduce customer downtime.

    ConnectWise ScreenConnect, formerly ConnectWise Control, is a remote support solution for Managed Service Providers (MSP), Value Added Resellers (VAR), internal IT teams, and managed security providers. Fast, reliable, secure, and simple to use, ConnectWise ScreenConnect helps businesses solve their customers' issues faster from any location. The platform features remote support, remote access, remote meeting, customization, and integrations with leading business tools.
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    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: 5,921 This Week
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  • 6
    KDiff3

    KDiff3

    A graphical text difference analyzer

    This repository is no longer maintained and is kept for archival purposes. See https://invent.kde.org/sdk/kdiff3 for the newest code and https://download.kde.org/stable/kdiff3/ for release bundles. All bugs should be filed at bugs.kde.org. KDiff3 is a graphical text difference analyzer for up to 3 input files, provides character-by-character analysis and a text merge tool with integrated editor. It can also compare and merge directories. Platform-independant.
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    Downloads: 2,557 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: 1,628 This Week
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  • 8
    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: 389 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: 252 This Week
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  • Make Recruiting and Onboarding Easy Icon
    Make Recruiting and Onboarding Easy

    Simple, easy-to-use applicant tracking and employee Onboarding system for any sized organization.

    Take away the pain and hassle associated with applicant recruitment, hiring, and onboarding with ApplicantStack. Designed for HR professionals and recruiters, ApplicantStack helps streamline the recruiting and onboarding processes to improve productivity and reduce costs. ApplicantStack provides a complete toolkit that includes tools for posting, launching, and advertising jobs, assessing and managing candidates, collaborating with teams, centralizing information for quick hiring and onboarding, and more.
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    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: 379 This Week
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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: 159 This Week
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  • 12
    Rukovoditel - Project Management/CRM

    Rukovoditel - Project Management/CRM

    Free web-based open-source project management application

    Rukovoditel is a free web-based open-source project management application. A far cry from traditional applications, Rukovoditel gives users a broader and extensive approach to project management. Its customization options allow users to create additional entities, modify and specify the relationship between them, and generate the necessary reports. The platform enables users to craft their own application that is specifically tailored for their activity (CRM, ERP, HRM, WMS, etc.). Rukovoditel can be implemented not only as a project management tool, but also as a CRM platform, or a combination of both.
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    Downloads: 161 This Week
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  • 13
    Admidio

    Admidio

    Manage your organization online

    Admidio is a free open source user management system for websites of organizations and groups. The system has a flexible role model so that it’s possible to reflect the structure and permissions of your organization. You can create an individual profile for your members by adding or removing fields. Additional to these functions the system contains several modules like member lists, event manager, guestbook, photo album or download area.
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    Downloads: 126 This Week
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  • 14
    XOOPS Web Application System

    XOOPS Web Application System

    The world's leading content management systems (CMS) written in PHP

    PLEASE NOTE: Latest XOOPS files are on http://github.com/xoops and http://github.com/xoopsmodules25x) XOOPS is a Web application platform written in PHP for the MySQL database. Its object orientation makes it an ideal tool for developing small or large community websites, intra-company and corporate portals, weblogs, and much more. XOOPS is an acronym of eXtensible Object Oriented Portal System. Initially a portal system, XOOPS is now a leading content management system (CMS) that serves as a versatile Web framework. XOOPS can also be used as a weblog or journal via a standard install using the News module alone. Another approach is to use modules like News, Forum, Download, Web Links, etc. to form a community that interacts with members and visitors. Or think big, like an enterprise, and develop modules to use with eShop that integrate into XOOP's uniform user management system. XOOPS is released under the terms of the GNU General Public License (GPL)
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    Downloads: 127 This Week
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  • 15
    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: 101 This Week
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  • 16
    Bluefish
    Bluefish is a powerful editor for experienced web designers and programmers. Bluefish supports many programming and markup languages, but it focuses on editing dynamic and interactive websites.
    Downloads: 87 This Week
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  • 17
    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).
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    Downloads: 111 This Week
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  • 18
    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/
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    Downloads: 158 This Week
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  • 19
    ScummVM

    ScummVM

    A cross-platform interpreter for many point-and-click adventure games

    ScummVM is a cross-platform interpreter for many point-and-click adventure games. This includes LucasArts SCUMM games (such as Monkey Island 1-3, Day of the Tentacle, Sam & Max, ...), many of Sierra's AGI and SCI games (such as King's Quest 1-6, Space Quest 1-5, ...), Discworld 1 and 2, Simon the Sorcerer 1 and 2, Beneath A Steel Sky, Lure of the Temptress, Broken Sword 1 and 2, Flight of the Amazon Queen, Gobliiins 1-3, The Legend of Kyrandia 1-3, many of Humongous Entertainment's children's SCUMM games (including Freddi Fish and Putt Putt games) and many more. The project mailing lists have been moved to http://lists.scummvm.org The project tracker has been moved to https://bugs.scummvm.org
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    Downloads: 203 This Week
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  • 20
    Foswiki
    Foswiki is an Enterprise wiki, typically used to run a collaboration platform, knowledge base or document management system. Users can create wiki applications using the Topic Markup Language, and developers can extend its functionality with plugins. Foswiki stands for "Free and Open Source" wiki to emphasize its commitment to Open Source software.
    Downloads: 12 This Week
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  • 21
    WackoWiki

    WackoWiki

    WackoWiki is a light and easy to install multilingual Wiki-engine.

    WackoWiki is a light and easy to install multilingual Wiki-engine. Supports WYTIWYG-editing, page rights (ACLs), design themes (skins), file upload, email notification and much more. Compatible with PHP 8.0 - 8.3 and MariaDB / MySQL.
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    Downloads: 28 This Week
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  • 22
    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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  • 23
    Resx Editor is a small translation-oriented file editor for Microsoft RESX 2.0 files. Resx Editor is designed for professional translators (include a word count feature).
    Downloads: 14 This Week
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  • 24
    RemoteCalendars is a COM-.NET Add-in for Outlook 2003/2007, written in C#. After installing this plugin, every Outlook user should be able to subscribe, reload and delete a generic remote iCalendar (RFC 2445) from Outlook 2003/2007.
    Downloads: 7 This Week
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  • 25
    cerberuscms2

    cerberuscms2

    Cerberus Content Management System

    Cerberus Content Management System is a dynamic, secure and infinitely expandable CMS designed after a Unix-Like model. It is a custom written Web Application Framework ( W.A.F. ) with a consistent and custom written Pre-Hyper-Text-Post-Processor Programming Code Framework ( P.C.F. ). This Web Application Software Project' aim is to be the fastest and most secure Web Application Framework, Web Application Programming Code Framework, Text, Voice and Video Communications Platform and Content Management System in the world. The latest project version is programmed with the Pre-Hyper-Text-Post-Processor P.D.O. // P.H.P. Data Objects Driver Programming Code Statements that enables it to work on any Database Management System Server: MySQL, MariaDB, MicrosoftSQL, MiniSQL and More.. Continuation From @CerberusCMS
    Downloads: 20 This Week
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