CalDavSynchronizer 4.7.1

Sync Outlook Everywhere

  • By Gerhard Zehetbauer
  • Open Source
  • Updated Aug 17, 2026
Download for Windows

About CalDavSynchronizer

Outlook CalDav Synchronizer is a free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google, SOGo, Nextcloud or any other CalDAV or CardDAV server. Supported Outlook versions are Office 365, 2019, 2016, 2013, 2010 and 2007.

What's new in 4.7.1

  • Released 2026/08/17
  • Bug fixes
  • Fix gh issue #478,#479, SourceForge 2181,2179 empty address strings in Attendee Mapping.

Full release notes »

Technical details

PublisherGerhard Zehetbauer
AuthorGerhard Zehetbauer Alexander Nimmervoll
Version4.7.1
Release date2026-08-17
LicenseAGPL-3.0
Installer typezip
Architecturex86
Package IDaluxnimm.OutlookCalDavSynchronizer

Install CalDavSynchronizer from the command line

Install with Windows Package Manager
winget install --id=aluxnimm.OutlookCalDavSynchronizer -e
Update to the latest version
winget upgrade --id=aluxnimm.OutlookCalDavSynchronizer -e
Uninstall
winget uninstall --id=aluxnimm.OutlookCalDavSynchronizer -e

addoncaldavoutlookpluginsync

CalDavSynchronizer version history

  • 4.7.0
  • 4.6.0
  • 4.5.0
  • 4.4.0

Frequently asked questions

Is CalDavSynchronizer free?

Yes. CalDavSynchronizer is free and open-source software released under the AGPL-3.0 license.

What is the latest version of CalDavSynchronizer?

The latest version is 4.7.1, released on Aug 17, 2026.

Is it safe to download CalDavSynchronizer?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 46ae790a0518936ad1e58d3c6723f53497136d35e88b1af56c1dfe299686846c.

Which Windows versions does CalDavSynchronizer support?

CalDavSynchronizer runs on Windows and is available for 32-bit (x86) systems.

How do I uninstall CalDavSynchronizer?

Open Settings › Apps › Installed apps, find CalDavSynchronizer and select Uninstall. From the command line, run winget uninstall --id=aluxnimm.OutlookCalDavSynchronizer -e.