Projects and applications

Open source projects and applications

Top open source applications

Open source projects

3D Slicer

3D Slicer is a free and open source software package for visualization and medical image computing. 3D Slicer is natively designed to be available on multiple platforms, including Windows, Linux and OS X.


Android is an open-source software stack for mobile devices that includes an operating system, middleware and key applications. Android's mobile operating system is being led by Google and is based upon a modified version of the Linux kernel. Learn more about Android.


Artificer is a software artifact, logical metadata, and information repository. It consists of a common data model, multiple interfaces, useful tools, and extensibility. In other words? It's a powerful platform that untangles everything.


Coder is a free, open source project that turns a Raspberry Pi into a simple platform that educators and parents can use to teach the basics of building for the web. New coders can craft small projects in HTML, CSS, and JavaScript, right from the web browser.


Devcoin is an ethically inspired cryptocurrency created in 2011 to support open source programmers and writers worldwide. Devcoin will eventually fund all types of developers including hardware developers, musicians, painters, graphic artists and filmmakers. Devcoin is one of the longest running blockchain based digital currencies. Devcoins can be merge mined with Bitcoin, earned by developing, writing or completing tasks known as bounties, or purchased on various exchanges.


Drupal is an open source content management platform powering millions of websites and applications. It’s built, used, and supported by an active and diverse community of people around the world.


EnterMedia is an open source media database platform that can be run as a local, hybrid, or hosted solution.


figshare allows researchers to publish all of their research outputs in seconds in an easily citable, sharable and discoverable manner. All file formats can be published, including videos and datasets that are often demoted to the supplemental materials section in current publishing models.


Fossdroid's aim is to promote free and open source software on the Android platform thanks to F-Droid project. Fossdroid takes its data from F-Droid and organizes the apps in an attractive Google Play-like arrangement, with the ability to view apps by popularity.


GNU is a Unix-like operating system that is free software—it respects your freedom. You can install versions of GNU (more precisely, GNU/Linux systems) which are entirely free software.


Jenkins is an award-winning application that monitors executions of repeated jobs, such as building a software project or jobs run by cron. Among those things, current Jenkins focuses on the following two jobs: Building/testing software projects continuously and monitoring executions of externally-run jobs.


Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Joomla is an open source solution that is freely available to everyone. 


Kaltura provides free, open source, community-supported online video and rich-media tools for boosting internal knowledge sharing, training, and collaboration.


LibreOffice is community-driven and developed software which is a project of the not-for-profit organization, The Document Foundation. LibreOffice is an office productivity suite, with functionality similar to Microsoft Office or It is sponsored by the OSI and uses the LGPL3 license.


Linux is a widely used open source operating system for small and large scale computer systems originally created by Linus Torvalds. For the community, by the community, strives to be the central source for informed, reasonable, and intelligent Linux information, software, documentation and answers across the server, desktop/netbook, mobile, and embedded areas.


Moodle is an Open Source Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a free web application that educators can use to create effective online learning sites. Moodle has become very popular among educators around the world as a tool for creating online dynamic web sites for their students.

Mozilla and Firefox 

Mozilla is a global non-profit dedicated to putting the user in control of their online experience and shaping the future of the web for the public good. We do this by creating great software, like the Firefox browser, and building movements, like Drumbeat, that give people tools to take control of their online lives.

open.NASA is a collaborative platform for the open government community to share success stories and projects they are working on.  The content on this site is written by NASA employees and contractors across the agency. They are excited to highlight the ways that transparency, participation, and collaboration are being embraced by NASA policy, technology, and culture—and the amazing future that becomes possible because of that commitment.

Opencast Matterhorn

Opencast Matterhorn is open source software to support the management of educational audio and video content. Higher education institutions, corporations, healthcare and others industries use Matterhorn to produce recordings, manage existing video, serve designated distribution channels, and provide user interfaces to engage students, employees or customers with educational video.


OpenProdoc is a multiplatform ECM Document Management system built in Java. It is portable, works with multiple databases (including MySQL, Oracle, PostgreSQL, SQLLite, and others), and supports several methods of authentication.


Opina is an online application that allows you to design and share surveys with your contacts online. Collect and export the data from your surveys to analyze them.


OrangeHRM Open Source is a free human resources management system that offers modules to suit the needs of many businesses and includes free documentation and access to a broad community of users.


Orthanc is a lightweight, standalone, scriptable Digital Imaging and Communications in Medicine (DICOM) store. Orthanc is primarily conceived as a central, robust building block for the automation of the various medical imaging tasks that are specific to each hospital.


Paperity is the first multi-disciplinary aggregator of open access journals and papers, "gold" and "hybrid." It gives readers easy and unconstrained access to thousands of journals from hundreds of disciplines in one central location; helps authors reach their target audience, disseminate discoveries more effectively and maximize research impact; and raises exposure of journals, helps editors and publishers boost readership and encourages new submissions.


Pentaho offers a suite of open source Business Intelligence (BI) products called Pentaho Business Analytics—there are two offerings, an enterprise and community edition. The Pentaho BI Project encompasses the major application areas of reporting, analysis, dashboards, data mining, and business intelligence platform.


Phraseanet is a modular open source digital asset management and distribution platform. It is multi-platform and can be run on Linux, Windows, and OS X servers.


PrestaShop is a free to download and use open source ecommerce software.


PLOS ONE is an international, peer-reviewed, open-access, online publication—welcoming reports on primary research from any scientific discipline.


PourOver is a library for fast filtering and sorting of large collections—think 100,000s of items—in the browser.


Processing is an open source programming language and development environment for people who want to create images, animations, and interactions.


ProcessWire is an open source PHP5 content management system and framework (CMS/CMF) built to save you time and work the way you do. ProcessWire features all custom fields, an easy-to-use jQuery-inspired API, and a powerful selector engine.


The ProjectLibre team were the founders of open source software downloaded more than 4 million times around the world. ProjectLibre is a major open source addition as the leading alternative to Microsoft Project.

Article on ProjectLibre edges in on Microsoft Project dominance


Project Open Business Solutions S.L. is headquartered in Barcelona, Spain and is run under German management. The company's main activity is leveraging the open-source model to provide business solutions to small and medium-sized project organizations.

Article on Open source project management on the rise


Rubedo is an open source content management system (CMS Zend framework and MongoDB). This professional website building tool offers a complete range of features for all users: ergonomic virtual desktop, content management, digital assets management, cross-platform, responsive web design, theme customizer, geolocation.


If you are in a small team with a few people, you can create a group in Seafile and invite other team members. Team members can then maintain file libraries together. You may collaborate around the files online. With file synchronization, it's also easy to work on a set of files together.


TestLink is a test management tool comprised of a test team that takes the product requirements, writes a test specification document, reviews the tests, and then runs them all for each version of the product. 

The R Project for Statistical Computing

R is an open source programming language and software environment for statistical computing and graphics. The R language is widely used among statisticians for developing statistical software and data analysis.


Squash is an open source tool for test repositories management. Natively "multi" and "cross" projects, it can manage all testing stages, from requirements management to campaigns execution. Based on an ergonomic and intuitive interface, Squash is also "full web" making it an easy tool to deploy.


The Veterans Health Information Systems and Technology Architecture, or VistA, is widely believed to be the largest integrated Healthcare Information System in the world. It was originally developed and maintained by the U.S. Department of Veterans Affairs. It is designed to provide a high-quality medical care environment for the country's military veterans.


wallabag (formerly poche) is a self hostable application for saving web pages. With this application you will not miss content anymore. Click, save, read it when you want. It saves the content you select so that you can read it when you have time.


Weave (Web-based Analysis and Visualization Environment) is a new web-based visualization platform designed to enable visualization of any available data by anyone for any purpose. Weave is an application development platform supporting multiple levels of user proficiency—novice to advanced—as well as the ability to integrate, disseminate and visualize data at "nested" levels of geography.