Last reviewed Mar 18, 2026

NimbleCal uses the iCalendar standard (.ics) for import and export. ICS is the common format for moving calendars between apps and keeping a portable backup.

Privacy note
ICS files are plain text while they are stored, uploaded, emailed, or shared outside NimbleCal. After you import one, the events in NimbleCal use the app's normal end-to-end encryption. Exported `.ics` files stay plain text, so only store or share them somewhere you trust.

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