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ICS merger

Merge up to 50 .ics calendar files into one valid calendar, keeping time zones and recurrence, with duplicate skipping and a conflict report.

Add calendars, then merge to see the report and the file.

Event lines travel exactly as exported, so recurrence rules, excluded dates, and changed occurrences stay linked by UID. One time-zone definition travels per TZID name, first one wins, and two different definitions under one name are reported rather than resolved. Times are never converted; zones ride with their events. This tool does not clean up look-alike events that carry different UIDs, and it does not expand recurrence into single occurrences. Everything runs in this tab and nothing is uploaded.
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More PDF & file tools

- Calendar files (ICS) (/files/ics)
- Contact cards (vCard) (/files/vcard)
- Cron explainer (/dev/cron)
All PDF & file tools (/files)

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