It is a well-known fact that Microsoft 365 For many companies the default is the productivity solution and the range of its features is really impressive. This includes functions such as document editing, real-time collaboration, file sharing, project management, email, calendaring, and video conferencing. In other words, Microsoft 365 Both provide all the necessary applications to individual and corporate users that allow them to do their work easily and quickly.

However, the subscription model and cost of this software, as well as its security standards and policies, are not appropriate for everyone, and some companies start looking for some cheaper solutions.

In this article, we’ve put together some of the best open-source Microsoft 365 Options that provide a vast array of productivity attributes and can be deployed on a Linux machine.

1. Zimbra Cooperation

Zimbra Support Is an open-source web-based application platform, which can be deployed as an on-premises private cloud or off-premises public cloud service. By default, this includes an email server and web client.

Jomba Support Suite
Jomba Support Suite

Designed for enterprise deployment aimed at integrating a variety of collaboration tools, the software provides an innovative messaging experience that helps increase your productivity.


Zimbra Provides advanced email, calendaring and collaboration capabilities, and has the advantage of being simple to implement and use. Actually, Zimbra The project consists of a number of open-source projects under one roof and also provides a complete file-sharing system for audio and video conferencing and convenient management management for better communication.

If you integrate zimbra Docs, You will be able to create, edit and collaborate documents, spreadsheets and presentations inside the zimbra Web Client and can be shared with other users in real time.

Gimbra Advantages:

  • Integration with Slack, Dropbox and Zoom.
  • Modern, responsive user interface.
  • Mobile synchronization.
  • Highest compatibility with existing desktop email clients.

2. Twake

Twake There is an open-source digital workplace and a collaboration platform with a focus on increasing productivity and organizational efficiency within both small and large teams. The solution offers a wide range of collaborative tools and apps, including text messaging, group channels, task management, calendaring, real-time document co-authoring, and video conferencing.


A Twake Allows users to keep all their documents and data in one place, create and manage projects using a single interface, and integrate various collaborative tools. At the moment, you can connect more to it 1500 Third-party applications on your platform, including ONLYOFFICE, Google Drive, Loose, Twitter, Etc. If you have enough knowledge and expertise, you can develop your own plugin for any application you need to use public APIs.

When it comes to communication, this software has all the necessary features. You can create separate discussion channels for external users and interact with them even if they do not use Twake. Traditional text messaging is also available in group and personal chats.

If you need collaborative features, Twake makes it possible to create, edit and share documents, spreadsheets and presentations in real-time. The good news is that it is compatible Microsoft Office And Google document Supports files even more ODF Format, which is great for Linux users.

Fake advantages:

  • data encryption.
  • Over 1,500 available integrations.
  • Desktop apps.

3. Egroup

E-Groupware There is an open-source web-based suite that includes many useful productivity apps, such as calendaring, contact management, CRM, tasks, email, project management as well as an online file server. These core features come with a chat messaging tool, a video conferencing client, and a remote desktop module for effective collaboration and teamwork.

Easy Groupware Software
Easy Groupware Software

Easy Groupware Allows users to keep all information and files in a centralized location with access through any desktop browser, regardless of operating system. There are no specialized mobile applications, but the current mobile version runs on any smartphone or tablet fairly easily.

If you integrate Associate office, You will be able to edit and co-author text documents, spreadsheets, and presentations with others on your team online. The file-sharing feature not only makes it possible to share files internally, but also includes external parties (for example, partners, customers, or employees). The built-in collection of document templates allows you to simplify your tasks and get your work done quickly.

Advantages of eGroupware:

  • Cross-device synchronization.
  • A wide range of configuration and settings options.
  • Multifaceted talent.
  • Mobile version.

4. Nextcloud Hub

Nextcloud hub Is an open-source content collaboration platform designed for active online interactions without risk and data leaks. Built-in calendar, contacts, email and other productivity features allow you to get your work done easily. Basic functionality can be greatly enhanced by integrating a large amount of Third-party applications Available on the official market.

Nextcloud Hub - Content Collaboration Platform
Nextcloud Hub – Content Collaboration Platform

Necloud hub Security-oriented is an ideal choice for users and teams because it guarantees the highest level of data security due to a vast array of advanced features and algorithms, such as file access control, encryption, authentication security, and sophisticated ransomware recovery capabilities.

The platform also makes it possible to share and collaborate on documents, send and receive emails, and organize video chats. Together Nextcloud flowBuilt-in automation tool, you can improve team collaboration workflow by facilitating most of your repetitive tasks.

If you need an online office suite, you can integrate either ONLYOFFICE docs or Cooperation online. In any case, you will get all the benefits of real-time document collaboration with file versioning, restore, and retention control.

Advantages of Nextcloud Hub:

  • high security.
  • Official marketplace with lots of third-party apps.
  • Very easy to use.
  • Desktop and mobile applications.

5. ONLYOFFICE Workbench

ONLYOFFICE Workbench There is an open-source collaborative office that comes with a set of productivity applications for efficient team management. This self-hosted software makes it possible for teams and companies of any size to organize a secure work environment.


ONLYOFFICE Workbench Collaborative online editors are integrated with a productivity platform for text documents, spreadsheets, and presentations. The Office Suite is fully compatible with Word, Excel and PowerPoint files and also supports other popular formats (eg, ODF).

In short, the combined solution is designed to control all business processes and allow users to manage and share files, monitor projects, send and receive emails, create customer databases, issue invoices, plan events, etc. Allows for

ONLYOFFICE WorkbenchThe file management system is quite flexible because you can connect to third-party storage, such as Google Drive, Box, Dropbox, A campaign, And kDrive. Other integration options for different purposes (for example, Twilight, DocuSign, bitly) Are also available.

When it comes to co-authoring documents, ONLYOFFICE Workbench There are all the necessary features that you would probably like to see in a collaborative office suite. You can share documents with different access permissions (full access, read-only, form filling, commenting, and reviewing), using two different co-editing modes, restoring previous versions of the document And leave comments for other users.

ONLYOFFICE Vertical Advantage:

  • Highest Microsoft Office Compatibility.
  • Free desktop and mobile applications (Android and iOS).
  • Three levels of encryption: at rest, in transit, end-to-end.
  • Cloud version (free tariff plan for teams up to 4 users).

These are the top 5 open-source alternatives to Microsoft 365 for Linux. The main idea of ​​this article is to highlight the major benefits of each solution so that you can choose the right software based on your needs. Do you know any other options that deserve attention? Let us know by leaving a comment below.