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Orage vs Merkuro: catalog facts
Orage	Merkuro
Free Free and open source as part of the Xfce project.	Free Free and open source under the GPL-3.0-or-later licence.
Linux	Linux
Light on resources Uses the standard iCal format with import and export	Supports Nextcloud, Google Calendar, Outlook and CalDAV calendars Combines events, tasks and contacts in one app
Single user only, no group calendars Linux desktop only	Linux only Fits best within the KDE Plasma desktop
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.