vtiger CRM is an enterprise-ready Open Source CRM software mainly for small and medium businesses. vtiger CRM is built over proven, fast, and reliable LAMP/WAMP (Linux/Windows, Apache, MySQL, and PHP) technologies and other open source projects.


SugarCRM enables sales, marketing, and support organizations to manage their customer interactions more efficiently and profitably and is intended for both large and small companies worldwide. Platform agnostic, SugarCRM is the least complex, most portable, and most cost-efficient customer relationship management (CRM) solution. Natively built on the LAMP (Linux, Apache, MySQL and PHP) stack, Sugar Open Source can be deployed in virtually any environment.


LimeSurvey has a lot of features and contains everything you need for doing nearly every survey with grace. LimeSurvey has a lot of features and contains everything you need for doing nearly every survey with grace. Basically you can use Limesurvey for any type of data collection.


Zimbra is a client and server platform for next-generation messaging and collaboration. Zimbra Collaboration Open Source Edition provides administrators and their end users innovative features that solve the challenges faced by organizations using today's legacy communications infrastructure. Key advantages include:

compatibility with Windows, Mac, and Linux desktop environments;
better scalability and ease of maintenance; and
flexibility to integrate other applications as web services in our AJAX web client.


Alfresco Community Edition is an innovative, open source Enterprise Content Management platform intended for use in non-critical environments. Distributed under the LGPLv3 license, it is free to download and best suited for developers and technical enthusiasts who are willing to self-support and don’t required the additional enterprise-class features offered by Alfresco One.


GitLab is a Ruby-based GitHub clone for on-premise deployment, competing with GitHub Enterprise but also offering an open source Community edition that runs on Linux.

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OpenTripPlanner is the leading open source platform for multimodal trip itinerary planning and network analysis. OpenTripPlanner provides a multimodal trip planner allowing users to plan trips using a variety of transportation *****. Additionally, OpenTripPlanner has features for transportation analysis, including measures of mobility and accessibility.


OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols. Exchange is a groupware server designed to work with Microsoft Outlook, and providing features such as a messaging server, shared calendars, contact databases, public folders, notes and tasks.


LuxRender is a physically based and unbiased rendering engine. Based on state of the art algorithms, LuxRender simulates the flow of light according to physical equations, thus producing realistic images of photographic quality.


VLC - the cross-platform media player and streaming server.


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