iCalendar (.ics) Event Generator — Build RFC 5545 Compliant Calendar Feeds
Build RFC 5545-compliant .ics calendar files in your browser. Set event title, date/time, timezone, location, recurrence rules, and organizer — then copy or download the ICS file to import into Google Calendar, Apple Calendar, Outlook, or any calendar app. 100% client-side and free.
How to Use iCalendar (.ics) Event Generator — Build RFC 5545 Compliant Calendar Feeds
How to Use the iCalendar Event Generator
Step 1: Fill in Event Details
- Title — required. This becomes the
SUMMARYfield in the ICS file. - All-day event — check this to create a full-day event (no time fields). Multi-day all-day events are supported.
- Start / End date & time — for timed events, set both date and time. For all-day events, only dates are used.
- Timezone — select your IANA timezone (e.g.
America/New_York). UTC is the default. All-day events ignore the timezone. - Location — a venue address or meeting URL (e.g.
https://meet.example.com). - Description — free-text notes included in the event body.
Step 2: Set Optional Fields
- URL — a link associated with the event (e.g. a registration page).
- Organizer name & email — adds the
ORGANIZERfield to the ICS. Both name and email must be filled to include it. - Status —
Confirmed(default),Tentative, orCancelled. Confirmed status is omitted from the ICS (it is the implicit default).
Step 3: Configure Recurrence
- Repeat — choose Daily, Weekly, Monthly, or Yearly to add an
RRULE. - Repeat on (weekly only) — select which days of the week the event repeats (e.g. Mon–Fri for weekdays).
- Ends — choose when the recurrence stops:
- Never — the event repeats indefinitely.
- After N occurrences — adds
COUNT=Nto the RRULE. - On date — adds
UNTIL=YYYYMMDDTHHMMSSZto the RRULE.
Step 4: Copy or Download
- Copy ICS — copies the raw ICS text to your clipboard.
- Download .ics — saves a
event-title.icsfile you can open directly in any calendar application.
Importing the ICS File
| App | How to import |
|---|---|
| Google Calendar | Settings → Import → select the .ics file |
| Apple Calendar | File → Import → select the .ics file |
| Outlook | File → Open & Export → Import/Export → Import an iCalendar file |
| Thunderbird | Events and Tasks → Import |
Field Reference
| ICS Field | Meaning |
|---|---|
UID | Unique event identifier (generated per session) |
DTSTAMP | Timestamp when the file was created (UTC) |
DTSTART | Event start date/time |
DTEND | Event end date/time (exclusive for all-day events) |
SUMMARY | Event title |
DESCRIPTION | Event notes |
LOCATION | Venue or URL |
URL | Associated link |
ORGANIZER | Organizer name and email |
STATUS | CONFIRMED / TENTATIVE / CANCELLED |
RRULE | Recurrence rule (FREQ, BYDAY, COUNT, UNTIL) |
Frequently Asked Questions
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