Microsoft SharePoint is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Tiki Wiki CMS Groupware, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft SharePoint and 14 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Microsoft SharePoint are Open Atrium, Noodle Intranet Software, MangoApps and HCL Connections.
Tiki Wiki CMS Groupware is a full-featured, web-based, multilingual (40+ languages), tightly integrated, all-in-one Wiki+CMS+Groupware, Free Source Software (GNU/LGPL), using PHP + Smarty, MySQL, Zend Framework, jQuery and Bootstrap.
Open Atrium is a Drupal distribution that allows you to confidently engage with your colleagues through convenient collaboration.
Noodle is the social intranet software that improves communication, enhances collaboration, and encourages innovation in the enterprise. It brings microblogging, wikis, document sharing, instant messaging and other social business tools in a single portal.
Founded in 2007, MangoSpring transforms the way teams work together. The company's suite of social collaboration applications enable businesses to improve productivity and execution. Over 3,000 businesses and departments within enterprises in a wide range of industries...
HCL Connections is a leading social software platform that can help your organization engage the right people, accelerate innovation and deliver results. This integrated, security-rich platform helps people engage with networks of experts in the context of critical business...
Liferay Portal is an enterprise web platform for building business solutions that deliver immediate results and long-term value.
Linchpin is an efficient social intranet platform that focuses on effective collaboration and reduces complexity by means of user-specific customization.
Igloo is an intranet you'll actually like. It’s a web-based solution that enables you to share files, give updates, find answers, exchange ideas and work better together with your colleagues and customers.
Precurio is an intranet software that combines enterprise collaboration & content management with simple document management and workflow system.
Smart document management for knowledge-based companies. CogniDox is web-based, document management software that lets high-tech Companies take control of design collaboration and the transfer of knowledge to customers and partners.
Engynn Intranet is an extremely fast growing, simple intranet solution to connect, engage, and communicate with your organization. Featuring a quick setup, no contracts, and extremely cost effective pricing.
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It is Drupal based. And Drupal is so flexible that it can be used as a CRM or ERP.