• G Suite icon

    G Suite

    G Suite (formerly Google Apps for Work) is Google's encompassing selection of cloud apps for business, including customizable...

    Commercial Mac Windows Linux Web / Cloud Chrome OS

  • ONLYOFFICE icon

    ONLYOFFICE

    ONLYOFFICE is a cloud office suite integrated with CRM, Project Management and Email. It is available in both commercial and open...

    Freemium Mac Windows Linux Web / Cloud Self-Hosted

  • Samepage icon

    Samepage

    With Samepage, you can put all your project information on one page and collaborate with your team in real time. Samepage brings...

    Freemium Mac Windows Web / Cloud

  • Open365 icon

    Open365

    The open source cloud with LibreOffice online - LibreOffice online + Seafile + KDE. Improve your productivity and communicate better...

    Open Source Mac Windows Linux Android iPhone Self-Hosted

  • Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

    Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web...

    Freemium Linux Web / Cloud

  • Kolab Now icon

    Kolab Now

    Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and...

    Commercial Web / Cloud DAVdroid

  • Microsoft SharePoint icon

    Microsoft SharePoint

    Microsoft Office SharePoint Server is an integrated suite of server capabilities that can help improve organizational effectiveness by...

    Commercial Windows Web / Cloud Android iPhone Windows Phone

  • MDaemon Messaging Server icon

    MDaemon Messaging Server

    MDaemon Messaging Server software for Windows can be deployed in virtual, hosted cloud or private on-premise environments. It is used...

    Commercial Windows

  • OpenChange icon

    OpenChange

    OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols. Exchange is a...

    Open Source Linux

  • Kerio Connect icon

    Kerio Connect

    Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure...

    Commercial Mac Windows Linux Web / Cloud

  • ccGenie icon

    ccGenie Discontinued

    ccGenie turns a mountain of emails, attachments, and links into an organized project so that you and your team can quickly find...

    Freemium Web / Cloud Internet Explorer Chrome Safari Opera Firefox

  • Atmail Email Server icon

    Atmail Email Server

    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. ...

    Commercial Linux Web / Cloud

  • Know any more alternatives to Microsoft Office 365?

    Suggest an application to this list
  • atmail icon

    atmail

    Atmail allows you to choose between on-premises or cloud deployment. Features include email, contact, calendar, task, storage...

    Commercial Mac Windows Linux Android iPhone Android Tablet ... iPad

  • Emgage Prime icon

    Emgage Prime

    This is an alternative to SharePoint or Office 365 SharePoint Online that doesn't require replacing SharePoint. You can meet all...

    Commercial Mac Windows Web / Cloud Windows Mobile Android iPhone ... Blackberry Windows RT Android Tablet Windows Phone iPad Self-Hosted Huddle Alfresco Community Edition Interact Intranet Microsoft SharePoint Nuxeo ECM Platform Google Drive Liferay Portal Samepage Centric ECM Microsoft Office 365 Sitecore Igloo Software Wordpress Noodle Intranet Software

  • WikiSuite icon

    WikiSuite

    The most comprehensive and integrated Free / Libre / Open Source software suite ever developed.

    Open Source Linux Self-Hosted

  • OBM icon

    OBM

    OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile...

    Open Source Mac Windows Linux

  • WEBCON Business Process Suite icon

    WEBCON Business Process Suite

    Thanks to its unique workflow engine and capabilities, which far exceed those offered by the SharePoint standard, WEBCON BPS enables...

    Commercial Windows Windows Mobile Android iPhone Android Tablet iPad

  • Centralpoint

    Oxcyon's Centralpoint is an out-of-the-box CMS portal solution that offers data class libraries, document versioning, analytics...

    Commercial Windows Web / Cloud

  • Share this list of alternatives?

  • MyHub icon

    MyHub

    MyHub is a cloud-based intranet solution that provides businesses with a range of powerful business tools via their own secure...

    Commercial Web / Cloud

  • Axigen icon

    Axigen

    Axigen is an integrated email, calendaring & collaboration platform, built on a unique Linux mail server technology, for increased...

    Freemium Windows Linux BSD Self-Hosted Microsoft Office Outlook

  • HyperOffice Collaboration Suite icon

    HyperOffice Collaboration Suite

    HyperOffice has been designed for growing businesses looking for collaboration features minus the costs and complexity of setting up...

    Commercial Web / Cloud

  • Mailsite icon

    Mailsite

    MailSite Email Servers provide high quality,easy to use email solutions for businesses, enterprises and service providers that require...

    Commercial Windows Web / Cloud Android iPhone Android Tablet

  • Alinto

    Established in January 2000, Alinto is one othe principal french editors and operators of collaborative messaging and unified...

    Commercial Web / Cloud

  • SpinOffice CRM icon

    SpinOffice CRM

    SpinOffice is the only CRM software application that saves you time. Stay connected with your friends and business contacts and save...

    Free Mac Windows Web / Cloud

  • LeaderSend icon

    LeaderSend

    LeaderSend takes care of delivering your transactional messages and managing infrastructure, while you can focus on your business...

    Commercial Web / Cloud

  • Vcorreio icon

    Vcorreio

    With Vcorreio you can have up to 50 emails of 10 GB each without having to do any setup. And it comes with a free domain and 4 GB of a...

    Commercial Web / Cloud

  • Expanding Communication icon

    Expanding Communication

    Turnkey Solutions for the Enterprise Cloud Installation, Configuration, and Management tools for enterprise email, collaboration...

    Commercial Linux

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