Skip to content
EN

Software · Office & notes

Kontact

Handle all your emails, calendars, contacts and more within a single window.

  • Completely free
  • Windows and Linux
  • Open source
  • No account

At a glance

All of Kontact is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

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.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

How listings are built →

Do you develop Kontact?

Correct this listing with the report form, or cite it with this optional badge (it shows the verified free status and changes nothing in the ranking):

<a href="https://licitpro.fr/en/resource/kontact"><img src="https://licitpro.fr/badge/kontact.svg?l=en" alt="Listed on LicitPro" height="20"></a>

Developers and publishers →

In the same category

ONLYOFFICE Desktop Editors

Software · Open source

ONLYOFFICE Desktop Editors is an office suite, available on Windows, macOS, Linux, Android and iOS: word processing, spreadsheets and presentations (slide shows).

Completely freeWinMacLinuxAndroidiOS

LibreOffice

Software · Open source

LibreOffice is an office suite, available on Windows, macOS, Linux and Android: word processing, spreadsheets and presentations (slide shows).

Completely freeWinMacLinuxAndroid

Obsidian

Software

Obsidian is a note-taking program, available on Windows and Linux: Markdown support, plugins and add-ons, hardware acceleration.

Completely freeWinLinux

WPS Office

Software

WPS Office is an office suite, available on Windows and Linux.

Limited free planWinLinux

PDF Arranger

Software · Open source

PDF Arranger is a PDF toolkit, available on Windows and Linux: PDF merging, PDF splitting and page extraction.

Completely freeWinLinux

Foliate

Software · Open source

Foliate is an e-book reader, available on Linux.

Completely freeLinux