ICS Calendar Viewer & Creator
Open, inspect, and create .ics / iCalendar files directly in your browser.
No calendar events loaded yet. Upload an .ics file or create an event in the Creator.
How does this tool work?
Parses .ics files (RFC 5545) locally in the browser, clearly displaying events, recurrence rules, alarms, and attendees.
Upload an .ics file via drag & drop or paste VCALENDAR text. The tool extracts all VEVENT records, converts timezones accurately, translates RRULE patterns into human-readable text, and provides 1-click export to Google Calendar, Outlook Web, JSON, or CSV.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.