Zimbra is the most capable open source email and collaboration suite available today. It provides support for Email, Shared calendar, Document management, Pop3, Address book and lot more. Mails could be tagged and search support is also provided. Zimbra is considered as an alternative to Microsoft Exchange Server.

Zimbra - Email and Collaboration Suite

Alfresco is the open source alternative for Enterprise Content Management (ECM), providing Document Management, Collaboration, Records Management, Knowledge Management, Web Content Management, Image Management, Content Repository, Workflow. It supports CIFS interface to provide file system compatibility on Microsoft Windows and Unix-like operating systems. Alfresco is a content management framework where it could act as backend to store and retrieve the content. API support is available. <img src="/AppImages/Article/alfresco-img1.jpg" alt="" class="float-center">

Alfresco is the open source alternative for Enterprise Content Management (ECM), providing Document Management, Collaboration, Records Management, Knowledge Management, Web Content Management, Image Management, Content Repository, Workflow. It supports CIFS interface to provide file system compatibility on Microsoft Windows and Unix-like operating systems.

Alfresco - Enterprise Content Management System

Liferay Digital Experience Platform is an enterprise-grade platform that enables companies to create and connect personalized digital experiences across web, mobile, social, in store and other touchpoints. It provides the technical foundation (deep integration, security and modularity) for your digital business to orchestrate unique customer experiences, as well as business value features to support a deeper understanding of your customers

Liferay Digital Experience Platform (DXP)

LogicalDOC is a modern document management system with a nice interface, easy to use and very fast. It uses open source Java frameworks such as Spring, Hibernate and Lucene in order to provide a flexible and scalable DMS solution. Thanks to the most advanced presentation technology, LogicalDOC offers an unrivaled user experience with a refined and responsive interface.
 
A rich set of APIs is available for integration with third-party applications via webservice. On the website of LogicalDOC you can also download the commercial version of the software with a set of additional features.
 
<img src="/AppImages/Article/logicaldoc-screenshot_sm.png" alt="" class="float-left">

LogicalDOC is a modern document management system with a nice interface, easy to use and very fast. It uses open source Java frameworks such as Spring, Hibernate and Lucene in order to provide a flexible and scalable DMS solution. Thanks to the most advanced presentation technology, LogicalDOC offers an unrivaled user experience with a refined and responsive interface.

LogicalDOC Document Management - DMS

Nuxeo DM manages and tracks the flow of content through the business cycle, addressing the common pitfalls of document duplication, lack of version tracking, time-consuming search and retrieval, and security and access issues. It captures content with different formats like scanned images, email, office documents, CAD files etc. Audit logging and configurable versioning policies helps to to track the content lifecycle. 
 Community site: <A HREF="http://community.nuxeo.com/" target="_blank">http://community.nuxeo.com/</A>

Nuxeo DM manages and tracks the flow of content through the business cycle, addressing the common pitfalls of document duplication, lack of version tracking, time-consuming search and retrieval, and security and access issues. It captures content with different formats like scanned images, email, office documents, CAD files etc. Audit logging and configurable versioning policies helps to  to track the content lifecycle.

Nuxeo Document Management

OpenKM is a web base document management application that uses standards and Open Source technologies. OpenKM provides full document management capabilities including version control and file history, metadata, scanning, workflow, search, and more. 

OpenKM - Knowledge Management

eXo Platform is an open-source social-collaboration software designed for enterprises. It is full featured, based on standards, extensible and has an amazing design. Rich collaboration features such as wikis, forums, calendars and documents are smartly integrated around activity streams, social networking and workspaces. 
 
The platform has been carefully designed to instantly engage users. It runs on the Cloud or within the trusted security of an enterprise platform and is highly customizable to adapt when your needs evolve. eXo Platform has inherited strong document management capabilities from its portal platform roots and thus is also a fantastic platform for content-centric applications. Based on standard and highly extensible, eXo Platform also rely on community add-ons to bring users new capabilities like chat application, blog management and Google Drive extensions.

eXo Platform is an open-source social-collaboration software designed for enterprises. It is full featured, based on standards, extensible and has an amazing design.

eXo Platform - The Enterprise Social Platform

Kimios is the document management system (DMS) that aims to be the easiest as well as the most powerful document production environment. The structure of a document repository evolves constantly, it is why Kimios allows users to set thier own folder structure, metadata mapping and workflow architecture. Its feature include Full text search, Workflow, Version control.

Kimios - Document Management System

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