Boasting thousands of users, BugTracker.NET is easy to use and highly configurable. It supports Subversion, Git, and Mercurial, and the website includes a helpful demo and a link to comparisons of various bug tracking systems. Operating System: Windows.
FlySpray describes itself as "an uncomplicated, Web-based bug tracking system written in PHP for assisting with software development." It supports multiple databases, including MySQL and PGSQL, and it's easy to use. Operating System: OS Independent.
The GNU project's bug tracking system stores issue and resolution information in a central searchable database and communicates with users via a variety of mechanisms.
This Web-based bug tracker integrates with most SQL databases and can be accessed with any browser. It's easy to install and has an enormous list of features. Operating System: Windows, Linux, OS X.
Short for "Business Intelligence and Reporting Tools," BIRT is an Eclipse-based tool that adds reporting features to Java applications. Actuate is a company that co-founded BIRT and offers a variety of software based on the open source technology. Operating System: OS Independent.
108. ERP BI
Designed for enterprises that use open source ERP systems including PostBooks and XTuple ERP, this project offers business intelligence tools that extend the capabilities of those ERP solutions. It's based on the community edition of Pentaho. Operating System: Windows, Linux, OS X.
"The world's most widely used business intelligence software," Jaspersoft has an award-wining cloud solution with more than 100 customers. The company also offers BI solutions tailored for SaaS and PaaS providers. Operating System: OS Independent.
Palo offers offers an open source suite that combines OLAP Server, Palo Web, Palo ETL Server and Palo for Excel, or you can download the apps separately. Jedox offers a paid version that adds more capabilities to the core Palo product. See the comparison chart for details. Operating System: OS Independent.
Java-based JMagallanes can create static reports, Swing pivot tables for OLAP analysis, and charts. It accepts data from SQL, Excel, XML and many other formats. Operating System: OS Independent.
The Konstanz Information Miner, or KNIME, offers user-friendly data integration, processing, analysis, and exploration. In 2010, Gartner named KNIME a "Cool Vendor" in analytics, business intelligence, and performance management. In addition to the open source desktop version, several commercial versions are also available. Operating System: Windows, Linux, OS X.
This business intelligence platform boasts that it can take you from "data to insights in 72 hours with open source." OpenI solutions can be deployed on premises or on Amazon Web Services' cloud. Operating System: OS Independent.
Web-based OpenReports supports a wide variety of reporting engines, SQL-based reports, multiple parameters and flexible scheduling. The paid professional version adds a reporting dashboard, alerts, conditional report scheduling and report statistics. Operating System: OS Independent.
Pentaho combines data integration and business analytics tools in a single platform. In addition to the open source version, the company offers basic, professional and enterprise versions that offer additional functionality for an annual subscription. Operating System: Windows, Linux, OS X.
SpagoBI claims to be "the only entirely open source business intelligence suite." Commercial support, training and services are available. Operating System: OS Independent.
This newer project offers a lightweight, Java-based business process management platform. It aims to meet the needs of both business people and software developers. Operating System: OS Independent.
118. Bonita Open Solution
Users of this BPM solution include Directv, Trane, the governments of France and the Canary Islands, and Konica Minolta. In addition to the open source version, it comes in teamwork, efficiency and performance subscription packs. Operating System: OS Independent.
119. Intalio BPMS
The "world's most widely deployed Business Process Management System," Intalio BPMS comes in community and enterprise editions. The same company also offers IntalioBPM, a cloud-based version based on the same underlying technology. Operating System: Windows, Linux.
Used by organization like Toyota, Lenovo, Lehman College, ADL and others, ProcessMaker is a Web-based BPM solution that makes it easy to map out workflows. In addition to the open source version, it comes in three cloud-based paid versions. Operating System: Windows, Linux.
The uEngine BPM suite includes three separate components: BPM Foundation with a process engine and modeling tool; the process portal with personalization, single sign-on, and dashboard capabilities; and the BP Analyzer with OLAP analyzing and charting abilities. It supports multiple languages, including English, but because it is developed by a Korean company, parts of the Web site and interface sound strange to native English speakers. Operating System: OS Independent.
This community-run ERP project integrates well with Drupal and other open source projects to create a complete suite of business software. A wealth of documentation is available on the site, and the group also holds regular international conferences and training events. Operating System: Windows, Linux, OS X.
This Web-based tool for professional services organizations allows users to track projects, people, time sheets, invoicing and clients. In addition to the SaaS version available through the link above, it also comes in a community download with commercial support available. Operating System: OS Independent.
Compiere claims to be "the leading Cloud-based, open-source ERP software and customer relationship management (CRM) system." In addition to the free community version, it also comes in an enterprise version, and you can run it in Amazon's cloud. Operating System: Windows, Linux.
125. Dolibarr ERP/CRM
Like NetSuite and Sage, Dolibarr ERP/CRM meets the needs of SMBs, foundations and freelancers. The website offers screenshots and an online demo so that you can see how it works. The basic software is free, but additional modules and add-ons are available through the Dolistore. Operating System: OS Independent.
The Phreedom ERP suite builds on the capabilities of the PhreeBooks financial management software. The software is completely free, but paid support is available. Operating System: OS Independent.
127. GNU Enterprise
GNU Enterprise contains a host of developer and ERP tools, including human resources, accounting, CRM, project management, supply chain management, and e-commerce features. Its modular design and open architecture make it easy to customize and easy to maintain. Operating System: Windows, Linux, OS X.
128. JAllInOne ERP/CRM
Despite its name, JAllInOne is primarily an ERP solution with some basic CRM functions. It provides all the standard ERP functionality and supports multiple users, multiple languages, and multiple companies. Operating System: OS Independent.
JFire describes is both a full-featured Java-based ERP suite and a platform for building customized business applications. The ERP suite includes BIRT integration for BI and reporting. Support and services are available through third parties or through project owner NightLabs. Operating System: OS Independent.
Ohioedge combines CRM and BPM features in a Java-based app. The site is light on documentation, but does include a helpful test drive that lets you see how the software can be used. Operating System: OS Independent.
Used by Toyota, Honeywell and other well-known companies, Opentaps considers itself "the most advanced open source ERP + CRM solution." In addition to the free open source software, the company offers a supported professional version and several cloud-based versions available for deployment on Amazon EC2. Operating System: Windows, Linux.
132. Plazma ERP + CRM
This multi-function suite for SMBs offers a lot of CRM capabilities, along with a few ERP functions. The interface is bare-bones but easy to use, and while it comes with quite a bit of documentation, no paid support is available. Operating System: Windows, Linux, OS X.
133. TNT Concept
Best for small to medium-sized enterprises or independent professionals, this software describes itself as a "tool for Management of Operational Effectiveness." It's not a substitute for accounting software, but a complementary piece of software that eliminates the need for the multiple spreadsheets that many small business owners and managers use to run their companies. It's also available on an SaaS basis. Operating System: OS Independent.
This Java-based CAD program for architects offers a simple interface and an extensible architecture. It's not as full-featured as some other CAD programs, but adequate for basic tasks. Operating System: Windows, Linux, OS X.
Now well over 20 years old, this solid modeling tool counts the U.S. military among its users. It includes more than 400 separate tools, utilities and applications for interactive 3D solid geometry editing, geometric analysis, image and signal processing, path-tracing and photon mapping, benchmarks and more. Operating System: Windows, Linux, OS X, others
Aimed at mechanical engineers, product designers, architects and other types of engineers, Free-CAD offers 3D design capabilities and a 2D sketcher, and it can import and export most types of CAD files. In the future, the project hopes to add drawing sheets, robot simulations, rendering mode and an architecture module. Operating System: Windows, Linux, OS X, others
Chartdroid offers developers a native chart engine for Android. It creates bar, donut, line, pie and scatter charts and graphs. Operating System: Android.
Another alternative for creating network diagrams, GraphViz lets you use simple text or GXL (a variant of XML) to describe charts, and then it does the drawing work for you. See the Gallery for examples of the types of graphics it can create. Operating System: Windows, Linux, OS X.
Designed for advanced students, researchers and professional chemists, Avogadro describes itself as "advanced molecule editor and visualizer designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas." Operating System: Windows, Linux.
This java-based app lets students create diagrams of atoms, molecules, macromolecules, crystals, and more. The site includes a handbook and tutorials for helping you learn how to use the software. Operating System: OS Independent.
Another KDE app, Kalzium makes it easy to explore the periodic table. It also includes a molecular weight calculator, an isotopetable, a 3D molecule editor and an equation solver for stoichiometric problems. (Note that in order to use Kalzium on Windows, you'll have to download KDE for Windows.) Operating System: Windows, Linux.
ProtoMol is a framework for molecular dynamics simulation. It's designed to be highly flexible, easily extensible, and to meet high performance demands. Operating System: Linux, Unix, Windows.
144. Chocolate Invader
The folks at this website aren't offering an application—they're selling chocolate molded in the shape of a space invader, they plan to "open source" their design and recipe. They already offer quite a bit of information about their production process online, so you can try your own hand at creating a Chocolate Invader if you don't want to order their "best tasting chocolate in the universe." Operating System: N/A
Intelligent Teaching and Learning with Computers, aka iTALC, gives teachers the tools they need to manage a computer-based classroom without the high license fees of commercial software. Key features include remote control, demo viewing, overview mode, workstation locking and VPN access for off-site students. Operating System: Windows, Linux.
Mando lets you create an interactive whiteboard. If you have your computer connected to a camera and a projector, you can use your laser pointer to control the computer in front of the class, just as you would use a mouse at your desk. Operating System: Linux.
AppScale offers an open source version of the Google App Engine. It supports Python, Java, and Go, and you can run it on Amazon EC2. Operating System: Linux.
148. Cloud Foundry
Sponsored by VMware, Cloud Foundry is both an open source project and a PaaS based on that open source software. It offers support for multiple languages and multiple frameworks. Operating System: Linux.
Like OpenStack, CloudStack provides the underlying infrastructure and management tools for enterprises or service providers to build a cloud computing environment. Key features include support for multiple hypervisors, massive scalability, an easy-to-use Web interface and a RESTful API. Operating System: OS Independent.
"The world's most widely deployed IaaS cloud platform," Eucalyptus enables users to build their own IaaS environment without adding new hardware or retooling their current infrastructure. It's also compatible with the Amazon Web Services API, enabling the creation of hybrid clouds. Operating System: Linux.
Downloaded more than one million times, eyeOS calls itself "the world’s #1 Cloud Desktop." In addition to the open source version, it is also now available in a paid professional edition. Operating System: Linux.
This newer tool supports both public and private cloud creation and both desktop and server virtualization. It claims to be able to save users 20 percent compared to commercial virtualization solutions. Operating System: Windows, Linux.
Downloaded more than 5,000 times per month, OpenNebula claims to be the "most powerful open solution to enable private and hybrid clouds." It offers flexible tools to manage virtualized data centers. Operating System: Linux.
Built on Red Hat's open source software, OpenShift allows developers to write and deploy their applications in just minutes. It supports Java, Ruby, Node.js, Python, PHP and Perl, and because it's built with open technology, there's no vendor lock-in. Operating System: Linux.
OpenStack provides the technologies necessary to build both private and public clouds, with a goal of standardizing cloud computing infrastructure. Founded by Nasa and Rackspace, it now counts numerous major technology companies among its backers.
This project aims to help individuals or businesses build their own clouds for storing their files, music, pictures and calendar information. You can host it on your own server or use one of the service providers mentioned on the site who offer free hosting. Operating System: Windows, Linux.
This OpenStack project aims to enable network-connectivity-as-a-service for clouds built on the OpenStack platform. Operating System: Linux.
This cloud management software boasts more than 6,000 users, and it supports Amazon Web Services, Rackspace, Nimbula, Eucalyptus and CloudStack. In addition to the open source version, it comes in an enterprise version and multiple hosted versions ranging from the "Seed" version for up to five servers to the "World Domination" version for more than 80 servers. Operating System: Linux.
This Basecamp replacement tracks projects, milestones and tasks for small groups, and it even imports data from Basecamp. You can host it yourself or purchase hosting from Collabtive. Operating System: OS Independent.
Cyn.in combines wikis, social networks, blogs, file sharing repositories, micro blogs, discussion boards and other communication applications into a unified enterprise collaboration solution. You can choose the free open source version, the SaaS version or the paid on-premise appliance. Operating System: Windows, Linux, OS X.
This self-proclaimed "the leading Online Collaboration Tool" combines e-mail, shared calendar, project management, content management and other collaboration capabilities into a single package. In addition to the community version, it also comes in supported on-premise and cloud-based versions. Operating System: OS Independent.
162. Feng Office
Created with professional services organizations in mind, Feng Office now boasts more than 350,000 users. It comes in a "Feng Sky" version that runs in the cloud, as well as free community and commercially supported on-premise versions. Operating System: Windows, Linux, OS X.
Like Outlook, Group-Office features shared calendar and e-mail capabilities. In addition, it includes some basic project management, file sharing and CRM features. You can deploy server version on your own hardware (with or without paid support), or you can buy the SaaS version. Operating System: OS Independent.
The Integrated Groupware Suite, or IGSuite, is another Web-based open source groupware system. In addition to calendaring, e-mail, etc., it also incorporates some basic CRM, ERP and CMS functionality. Operating System: Windows, Linux, Unix.
Based on the original Android email client, K-9 is designed to "make it easy to chew through large volumes of email." Key features include push IMAP support, attachment saving, BCC to self, signatures, message flagging, multiple identities and more. Operating System: Android.
Best for teams, freelancers, and service providers, Ofuz tracks contacts, organizes leads, manages projects, tracks your time, creates invoices, sends e-mail and more. While it's technically still a beta, both the open source download and the SaaS online version are both useable. Operating System: OS Independent.
167. Open Atrium
Open Atrium describes itself as "a team collaboration tool with a kick of open source hotness." It includes blog, calendar, sharebox, notebook, case tracker and dashboard capabilities. Operating System: OS Independent.
This project includes more than 50 separate groupware apps that you can mix and match to suit your needs. Key features include e-mail, contact management, shared calendar, content management, project management, a bug tracker and more. Operating System: Windows, Linux.
169. Simple Groupware
This enterprise groupware app can sync with Outlook, and it offers dozens of Web-based modules. Organizations can extend its capabilities buy building their own add-ons with the sgsML language. Operating System: Windows, Linux.
This app for small businesses combines social networking features with project and document management. In addition to the open source version that you can host yourself, the company also offers it as an SaaS or through Amazon EC2. Operating System: OS Independent.
Short for "The Ultimate Team Organization Software," includes group calendar, email, time tracking, document management and project management. In addition, it also offers special features for developers, like a bug tracker, test support and some Scrum tools . Operating System: Linux.
The self-proclaimed "best open source email and collaboration software," Zarafa is an alternative to Microsoft Exchange that can sync with mobile devices. In addition, it has a mobile device management plug-in that includes remote wipe capabilities. Paid support and hosted versions are also available. Operating System: Linux.
Compressing files before you store them can help minimize the amount of storage capacity you need. 7-zip supports ZIP files and several popular compression formats, including 7Z files, which offer 30-70 percent greater compression than ZIP files. Operating System: Windows, Linux, OS X.
This helpful app compresses images up to 90 percent, making it easier to e-mail them or upload them to your favorite Web site. It supports most common image formats, including JPG, PNG, GIF, BMP, and WMF. Operating System: Windows.
175. KGB Archiver
KGC Archiver claims to offer an "unbelievable high compression rate" that's even better than 7Z. It also offers AES-256 encryption. Operating System: Windows.
While WinZip creates just one type of files, PeaZip can write to 12 different archive formats and read more than 130 different kinds of compressed files. It also supports self-extracting archives, strong encryption, two-factor authentication, secure deletion and other capabilities. Operating System: Windows, Linux, OS X.
The All In One Control Panel (a.k.a. AIOCP) combines content management with e-commerce management and a development platform for creating Web apps. Support and services can be purchased from project owner Tecnick.com.Operating System: Windows, Linux, OS X.
Used by companies like Toyota, Fox, Land's End, Marriott, Merck and many others, this multi-function solution combines document management, records management, Web content management with a number of other enterprise collaboration features. The core software is available for free, but paid support, training, consulting and a cloud-based version are available. Operating System: Windows, Linux, OS X.
Winner of several awards, Archon simplifies the process of creating a searchable Web site to house archival materials. Administrators can input or edit information via Web forms, and the software automatically uploads and publishes the data. It's currently being used by more than 40 universities, zoos, historical societies, and other institutions. Operating System: OS Independent.
First released in 2011, Armstrong is a content management system specifically designed to meet the needs of news organizations. It was developed by The Bay Citizen and the Texas Tribune. Operating System: OS Independent.
While BIGACE is used by many smaller organizations, it's multi-site, multi-language, and multi-user capabilities make it a possibility for larger enterprises looking for a Web CMS. Key features include a WYSIWIG editor, templates and stylesheets, and permission management. Operating System: Windows, Linux, Unix.
Bitweaver's claim to fame is a modular design that lets you pick and choose which features you need. Those features include articles, wikis, image galleries, calendar, user management, and more. Operating System: OS Independent.
183. Daisy CMS
Java-based Daisy can be used for Web sites, intranets, product documentation, knowledge bases, and more. It includes both a document repository and a wiki. Operating System: OS Independent.
184. Devproof Portal
Devproof includes modules for blogging, articles, downloads, and more that make it easy to set up your own portal. It's easy to use, but not as popular as some of the other content management systems. Operating System: OS Independent.
The "#1 open source Web content platform for business," DotNetNuke currently runs more than 700,000 sites and boasts more than 7 million downloads. You can download the free community version or purchases the professional or enterprise version, and the site also has a large store with add-ons, themes and other tools to help speed the development of your website. Operating System: Windows.
With more than 630,000 users and developers in its communityDrupal is a tremendously popular Web content management. It's users include publishers like the New York Observer and Popular Science, universities like Harvard and MIT, and well-known brand names like MTV and AOL. Operating System: OS Independent.
187. Family Connections
If you love scrapbooking, you might also love setting up a family Web site. This app makes it easy to create a private site for sharing photos, calendars, recipes and keeping in touch with family members. Operating System: OS Independent.
188. Fedora Commons
Fedora Commons allows you to manage, preserve, and link different types of digital content. For example, you can use it to create an archive of video, audio, and text files on a particular topic which users can then search or comment on. Operating System: OS Independent.
189. Get Simple
With an intuitive user interface, five-minute setup and no need for a separate database, Get Simple is one of the easiest content management systems for non-technical small business owners to use. It's been downloaded more than a million times and has a very active support forum and excellent documentation. Operating System: Linux.
Approximately 2.7 percent of all websites use this very popular open source Web content management system. Version 1.7 offers easier installation, one-click version updating, automatic form data validation, batch processing and more. Operating System: OS Independent.
Named a "leader" in Gartner's Magic Quadrant for Horizontal Portals, LifeRay provides the platform for nearly half a million websites and enterprise portals, including some for Cisco, T-Mobile, Barclays, AutoZone and even Sesame Street. It has both community and enterprise editions, and Liferay also sells support, training and consultation services. Operating System: OS Independent.
This open source content management system has recently released version 4.5, which offers instant mobile websites and multi-channel publishing. It's used by thousands of organizations, including the U.S. Navy and Texas State University. Magnolia sells both standard and pro enterprise versions of its software, with multiple levels of support available. Operating System: Windows, Linux.
MindTouch enables the creation of social help websites, and it's used by customers like PayPal, Mozilla and Intuit. The Core software is open source, or you can purchase MindTouch on an SaaS basis. Operating System: Windows, Linux.
Owl lets you create a knowledgebase or FAQ site. It's available in both a regular version and an "ultralite" version that does not use a database. Operating System: Windows, Linux.
One of the most popular open source projects of any kind, Plone is another widely used content management system. It has a reputation for excellent security features and can be used to create mobile Websites. Operating System: Windows, Linux, OS X.
Winner of a 2010 Most Promising Open Source Award, Pimcore offers Web content management, product information management, asset management and rapid application development. It's based on the Zend framework and ExtJS. Operating System: Linux, Unix.
Tomato takes a widgets-based approach to website design, which makes page layout very easy. Like Pimcore, it's also built on top of Zend. Operating System: Linux.
Downloaded more than 4 million times, the TYPO3 content management system combines a rich feature set with usability. Key features include multimedia support, detailed user permissions, and scalability. Operating System: Windows, Linux, Unix.
This CMS offers a framework for creating your own Web apps, as well as a full suite of modules, including wikis, photo galleries, message boards, event management, ecommerce, surveys, donations and more. Operating System: Windows, Linux/Unix, OS X.
200. Wolf CMS
This newer CMS prides itself on being lightweight, fast and easy to use. However, note that it is easiest to use if you have some PHP coding skills. Operating System: Windows, Linux.
XOOPS (an acronym for "eXtensible Object Oriented Portal System) is a modular, database-driven Web content management system with a large user base and a large number of awards to its credit. It also offers excellent personalization capabilities, a skinnable interface, versatile group permissions and supports multiple languages. Operating System: OS Independent.
Citrus is a customer care and billing solution aimed at subscription-based products such as Internet service, telecommunications, and consulting. It tracks customer information, service records, custom billing cycles, and support tickets. Operating System: OS Independent.
Similar to Orange Leap, CiviCRM was particularly designed for advocacy groups, NGOs and non-profit organizations with similar needs. It includes modules for case management, fundraising, event management, membership management, e-mail communications and marketing, and it integrates with both Drupal and Joomla. Operating System: OS Independent.