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Software · Office & notes

Merkuro

Manage your tasks, events and contacts with speed and ease.

  • Completely free
  • Linux
  • Open source

Overview

Merkuro is a calendar program, available on Linux.

Services and protocols mentioned: CalDAV and Nextcloud.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Merkuro is a calendar and contact application that allows you to manage your tasks, events and contacts.” — Flathub, 10 November 2026

At a glance

Merkuro is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) 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
  • Commercial use allowed

About

Merkuro is a calendar and contact application that allows you to manage your tasks, events and contacts. Merkuro supports both local calendars as well as a multitude of online calendars: Nextcloud, Google® Calendar, Outlook®, Caldav, and many more. Merkuro was built with the idea to be usable on desktop, on mobile and everything in between.

Description from Flathub — AppStream (Flathub)

Sources and checks

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

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