Handle your email, calendar, contacts and other personal data with Kontact. Kontact groups everything together in one place and helps you manage your communications, organize your day and work with your colleagues.
Kontact unifies several personal information management applications into a single window to give you the best possible experience and boost your productivity. With Kontact you can use all the tools of our powerful suite in one place. Unlike proprietary web applications we value your privacy and support open standards, which is why Kontact gives you full control over your data. You can of course also access your data offline if you want to.
Kontact consists of several well-integrated components:
- KMail - a powerful and feature-rich email client with support for a wide range of email providers.
- KOrganizer - a calendar and scheduling component of Kontact which is able to work with NextCloud, Kolab, Google Calendar and other calendaring services.
- KAddressBook - an easy to use contact management tool that can synchronize contacts with many popular services.
- Akregator - a news reader with powerful search and archiving functionality.
Publisher’s description
What is Kontact?
Kontact by KDE e.V. is open-source Windows software in the email clients category. Besides Windows, it is available for Linux.
Installation and requirements
The publisher provides EXE (NSIS) installers for 64-bit Windows. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Also runs on Linux
Cons
- No native ARM64 build
- No update for more than a year
- The official download link did not answer at the last check
In short: Kontact is an open-source email client tool for 64-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Key features
- KMail - a powerful and feature-rich email client with support for a wide range of email providers.
- KOrganizer - a calendar and scheduling component of Kontact which is able to work with NextCloud, Kolab, Google Calendar and other calendaring services.
- KAddressBook - an easy to use contact management tool that can synchronize contacts with many popular services.
- Akregator - a news reader with powerful search and archiving functionality.
AppStream · Flathub
Is Kontact safe to download?
- The file is served by cdn.kde.org, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
AE68F1242DF0515F153080D7F363FA89F925988E546451F89C4818F6F075E1AE· Open the VirusTotal report for this hash - The link did not answer when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| masterLatest | February 13, 2025 | — | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id KDE.Kontact -ekontact-master-2573-windows-cl-msvc2022-x86_64.exe /SRelated guide: How to use winget: install and update apps
Also for other systems
flatpak install flathub org.kde.kontactInformation
- Publisher
- KDE e.V.
- Category
- Email clients
- Licence
- GPL-2.0-or-later
- Price
- Free
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Other platforms
- Linux
- Version
- master
- Released
- February 13, 2025
- Added to the catalogue
- February 13, 2025
- Versions listed
- 1
- Website
- kontact.kde.org
- winget ID
- KDE.Kontact
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Kontact free?
Yes. Kontact is open-source software under the GPL-2.0-or-later licence.
Is Kontact safe to download?
The download comes from cdn.kde.org, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Kontact with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Kontact be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Kontact run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use Kontact without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Kontact?
Tuta Mail, Proton Mail Bridge, Mailspring, eM Client and MFCMapi. The alternatives page compares them.
