Contactoffice Alternatives

Contactoffice is described as 'Virtual Office, Online Office, Digital Learning Space, Online Groupware - ContactOffice, Keep a virtual office on the web. Share documents, contacts, calendar, tasks, ... with clients, students, suppliers, friends or family' and is a Cloud Storage service in the office & productivity category. There are more than 10 alternatives to Contactoffice, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Linux, Android and iPhone. The best alternative is Icedrive, which is free. Other great sites and apps similar to Contactoffice are Google Workspace, Nextcloud Hub, Zimbra Collaboration Suite and Microsoft 365.

Contactoffice alternatives are mainly Mail Servers but may also be Cloud Storage Services or Office Suites. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Contactoffice.

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Contactoffice

Freemium • Proprietary
Cloud Storage Service
Online

Virtual Office, Online Office, Digital Learning Space, Online Groupware - ContactOffice, Keep a virtual office on the web....

Learn more about Contactoffice

Icedrive
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No
Freemium • Proprietary
Cloud Storage Service
File Sync Tool
Online Backup Tool
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
183 alternatives to Icedrive
Icedrive is a cloud storage, backup and file sharing service with browser, desktop and mobile apps.

The Icedrive desktop application allows users to mount their cloud storage space as a real hard drive.
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Icedrive Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
2. End-to-End EncryptionIcedrive has E2E Encryption, for entire or parts of the app.
Built-in File Manager
Built-in Media converter
File Storage
WebDAV Support
Mounting drives
Google Workspace
Do you think this is a good alternative?
Yes
No
Paid • Proprietary
Mail Server
Team Collaboration Tool
Calendar App
Mac
Windows
Linux
Online
Chrome OS
49 alternatives to Google Workspace
Google Workspace (formerly Google Apps for Work / G Suite) is Google's encompassing selection of cloud apps for business, including customizable products under custom domain names. It features traditional office tools through Google Docs as well as communication and time...
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Google Workspace Features
1. Sync with Google CalendarGoogle Workspace can be synchronized with Google Calendar
2. Two-factor AuthenticationGoogle Workspace supports two-factor authentication (2FA).
Online collaboration
Google contacts integration
Sync with Google Drive
Google Sheets integration
Integrated Bulk Emailing
Nextcloud Hub
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Yes
No
Free • Open Source
Team Collaboration Tool
Calendar App
Self-Hosted
53 alternatives to Nextcloud Hub
Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.
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Nextcloud Hub Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
2. Ad-freeNextcloud Hub doesn't contain any form of external advertising.
3. Real time collaborationMultiple users can work together in Nextcloud Hub simultaneously.
4. Extensible by Plugins/ExtensionsNextcloud Hub can be extended with add-ons, plugins and extensions.
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Zimbra Collaboration Suite
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Yes
No
Freemium • Open Source
Mail Server
Calendar App
Team Collaboration Tool
Linux
Online
Self-Hosted
43 alternatives to Zimbra Collaboration Suite
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
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Zimbra Collaboration Suite Features
1. Real time collaborationMultiple users can work together in Zimbra Collaboration Suite simultaneously.
ActiveSync
Active Directory integration
Microsoft 365
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Yes
No
Paid • Proprietary
Mail Server
Project Management Tool
Online
Software as a Service (SaaS)
87 alternatives to Microsoft 365
Microsoft 365 is a subscription-based software services that licenses Microsoft Office products for on-premise or cloud-based use.
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Microsoft 365 Features
1. IFTTT IntegrationYou can connect different services to automatically trigger actions within Microsoft 365 using IFTTT.
2. Real time collaborationMultiple users can work together in Microsoft 365 simultaneously.
Document Workflow
Document sharing
Web-Based
WikiSuite
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Yes
No
Free • Open Source
Linux
Self-Hosted
9 alternatives to WikiSuite
WikiSuite™ is especially suited to knowledge-centric organizations and offers most (80%+) of the data and information management features all organizations need.
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WikiSuite Features
1. Real time collaborationMultiple users can work together in WikiSuite simultaneously.
Free courses
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Kolab Community
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Yes
No
Freemium • Open Source
Linux
Online
Self-Hosted
43 alternatives to Kolab Community
Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.
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Kolab Community Features
1. Real time collaborationMultiple users can work together in Kolab Community simultaneously.
CalDAV Support
WebDAV Support
IMAP Support
CardDAV Support
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Google One
Do you think this is a good alternative?
Yes
No
Freemium • Proprietary
Cloud Storage Service
Online Backup Tool
Online
Android
iPhone
Android Tablet
iPad
175 alternatives to Google One
Expanded storage, access to Google experts, and more — in one shareable plan.
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Google One Features
File Storage
Krakenfiles
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No
Free • Proprietary
Online
178 alternatives to Krakenfiles
Krakenfiles is a file storage. It offers unlimited file storage and 20 MB file upload size. You will have your page when you register.
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Krakenfiles Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
Cloud migration
File Storage
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Kolab Now
Do you think this is a good alternative?
Yes
No
Paid • Open Source
Calendar App
Mail Server
Cloud Storage Service
Online
Software as a Service (SaaS)
DAVdroid
78 alternatives to 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 most importantly; secure.
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Kolab Now Features
1. Support for AliasesKolab Now supports aliases, so you can receive email without exposing your main email address
2. Real time collaborationMultiple users can work together in Kolab Now simultaneously.
3. Privacy focusedKolab Now is considered a privacy friendly alternative.
4. End-to-End EncryptionKolab Now has E2E Encryption, for entire or parts of the app.
CalDAV Support
WebDAV Sync
CardDAV Support