Split Ics API
https://api.findutils.com/api/tools/split-ics/execute Split one large iCalendar (.ics) file into smaller .ics files so an importer that rejects a big calendar accepts each part. Entries are cut by count in file order, at most chunk_size per part; a recurrence master and its modified occurrences (same UID) always stay in one part. Every part is a complete VCALENDAR with the source header properties and only the VTIMEZONE blocks its own entries reference. Recurrence rules are copied as they are, never expanded. Nothing is uploaded and no importer limit is assumed: pick the chunk size your calendar accepts.
Request body
application/json-
input
string required
The .ics file contents.
-
chunk_size
integer optional
Entries per part (events, to-dos and journal entries count alike). Default 250, at most 5000. Default
250. -
name_prefix
string optional
Written as X-WR-CALNAME on each part as "<prefix> (part N of M)". Default: the source calendar name is copied unchanged.
Example arguments
Verified{
"input": "BEGIN:VCALENDAR\nVERSION:2.0\nBEGIN:VEVENT\nUID:[email protected]\nDTSTART:20260903T093000Z\nSUMMARY:Standup\nEND:VEVENT\nBEGIN:VEVENT\nUID:[email protected]\nDTSTART:20260904T093000Z\nSUMMARY:Review\nEND:VEVENT\nEND:VCALENDAR\n",
"chunk_size": 1
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