Never uploaded
Your spreadsheet is read in your browser and the calendar file is built right there. No account, no server, no size limit.
Drop a CSV or Excel file, get an .ics calendar file that imports cleanly into Google Calendar, Outlook, and Apple Calendar. Free, no upload, no sign-up.
Your spreadsheet is read in your browser and the calendar file is built right there. No account, no server, no size limit.
Outlook and Google Calendar CSV layouts are recognized on sight; any other sheet is matched by header and checked against the data. Dates in any format, day-first or month-first, detected.
Standard .ics output with timezone-correct times and stable event IDs — Google Calendar, Outlook, Apple Calendar, Thunderbird, Proton, Fastmail.
Starting from scratch? Download a spreadsheet template with the right columns.