Web Tools
iCalendar Event Generator
Build RFC 5545 compliant ICS calendar events with support for recurrence rules, alarms, categories, and more. Download .ics files or copy the output. Runs entirely in your browser — your data never leaves your machine.
ical ics calendar event rfc5545 vevent generator
Published June 1, 2026
All interactive tools run entirely in your browser. Your data never leaves your device.
How It Works
Fill in event details — summary, dates, times, location, recurrence, and alarms — and the tool generates a valid RFC 5545 iCalendar (ICS) file. Copy the output or download the .ics file to import into any calendar app (Google Calendar, Apple Calendar, Outlook).
Features
- Full VEVENT support: summary, description, location, organizer, URL, status, transparency
- Date/time handling: timed events and all-day events with start/end dates
- Recurrence rules: daily, weekly, monthly, yearly with interval and count
- Reminder alarms: VALARM with configurable trigger (5 min to 1 day before)
- Categories: comma-separated event tags
- Download: save as .ics file for calendar import
- Validation: real-time field validation with error messages
- 5 examples: simple meeting, all-day, weekly recurring, birthday, webinar
- Private: runs entirely in the browser — no data transmitted
Use Cases
- Creating calendar invites without a calendar app
- Generating ICS files for event websites
- Testing calendar integration in applications
- Sharing events via downloadable .ics files
- Learning the iCalendar (RFC 5545) format