Kolab Community Alternatives

Kolab Community is described as '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' and is an app in the office & productivity category. There are more than 25 alternatives to Kolab Community for a variety of platforms, including Online / Web-based, Linux, Windows, Self-Hosted solutions and Android. The best alternative is Google Calendar, which is free. Other great apps like Kolab Community are Simple Calendar, Google Workspace, Roundcube and Morgen.

Kolab Community alternatives are mainly Calendar Apps but may also be Mail Servers or WebMail Providers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Kolab Community.

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Kolab Community

Freemium • Open Source

Linux
Online
Self-Hosted

Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important...

Learn more about Kolab Community

Google Calendar
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No
Free • Proprietary
Calendar App
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Sunbird
Google Chrome
129 alternatives to Google Calendar
With Google Calendar, its easy to keep track of all your lifes important events in one place. You can add events and send invitations effortlessly, share your schedule with friends and family, and search for events you might enjoy.
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Google Calendar Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
2. IFTTT IntegrationYou can connect different services to automatically trigger actions within Google Calendar using IFTTT.
3. Calendar IntegrationGoogle Calendar lets you sync your tasks and events with your calendar application.
Reminder for deadlines
Material design
Data export/import
Shared Calendar
Simple Calendar
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Yes
No
Freemium • Open Source
Calendar App
Android
Android Tablet
F-Droid
97 alternatives to Simple Calendar
A simple calendar with optional CalDAV synchronization. You can easily create recurring events and setup reminders, it can also display week numbers.
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Simple Calendar Features
1. No TrackingSimple Calendar will not track you or use your personal data.
2. RemindersSimple Calendar allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
3. Works OfflineSimple Calendar can be used without the need to connect to the internet.
4. Dark ModeSimple Calendar supports dark mode for comfortable usage in low light conditions.
5. Privacy focusedSimple Calendar is considered a privacy friendly alternative.
6. Ad-freeSimple Calendar doesn't contain any form of external advertising.
Notifications
WebDAV Support
Customizable
Built-in Calendar
Google Workspace
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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
Roundcube
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Yes
No
Free • Open Source
WebMail Provider
Email Client
Self-Hosted
PHP
Cloudron
28 alternatives to Roundcube
Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.
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Roundcube Features
1. WYSIWYG SupportRoundcube integrates a WYSIWYG editor to edit the look and content of a document, page, or file.
2. PGP EncryptionRoundcube supports PGP, an encryption system used for sending encrypted emails and files.
IMAP Support
Hostable
Morgen
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Yes
No
Paid • Proprietary
Calendar App
Todo List Manager
Mac
Windows
Linux
Android
iPhone
100 alternatives to Morgen
Morgen merges your calendars, to-dos, productivity apps, and schedulers, so you manage all your time in one place. With Morgen as your time management hub, you’ll stop wasting time flipping between calendars, apps, and browser tabs, and just get work done.
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Morgen Features
1. Pomodoro TimerPractice the Pomodoro Technique in Morgen to stay focused and productive.
2. Sync with Google CalendarMorgen can be synchronized with Google Calendar
3. Calendar IntegrationMorgen lets you sync your tasks and events with your calendar application.
4. Dark ModeMorgen supports dark mode for comfortable usage in low light conditions.
5. Privacy focusedMorgen is considered a privacy friendly alternative.
Scheduling
Todoist integration
CalDAV Support
Calendar Sync
Outlook integration
Personal-assistant
Exchange
Task Scheduling
Appointment Scheduling
Google Calendar integration
Mailo
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Yes
No
Freemium • Proprietary
WebMail Provider
Calendar App
Cloud Storage Service
Online
Android
iPhone
Android Tablet
iPad
OpenPGP
72 alternatives to Mailo
The mail service which respects you.
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Mailo Features
1. Privacy focusedMailo is considered a privacy friendly alternative.
2. PGP EncryptionMailo supports PGP, an encryption system used for sending encrypted emails and files.
3. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
4. LightweightMailo consumes less device resources compared to similar apps.
5. End-to-End EncryptionMailo has E2E Encryption, for entire or parts of the app.
6. GPG EncryptionMailo supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
7. Ad-freeMailo doesn't contain any form of external advertising.
8. Calendar IntegrationMailo lets you sync your tasks and events with your calendar application.
9. Spam FilterMailo can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
IMAP Support
POP3 Support
Calendar Sync
CalDAV Support
Integrated Compliance Suite
CardDAV Support
Sync Contacts
Business Plan
Family Calendar
WebDAV Support
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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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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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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