Adding a single “Add to Calendar” link or file to a website, invite email, or event page usually means hand-writing an .ics file — and the iCalendar format (RFC 5545) has enough quirks (line folding, UTC timestamps, unique IDs) that it’s easy to produce a file some calendar apps reject. This tool generates a spec-correct file from a simple form.
What Is the iCal Event Generator?
Fill in an event’s title, start and end date/time, location, and description, and get a downloadable .ics file built to the RFC 5545 iCalendar standard — importable into Google Calendar, Outlook, Apple Calendar, and any other standards-compliant calendar app.
How to Use It
- Open the tool at /tools/ical-generator.
- Fill in the event title, start/end date and time, location, and description.
- Copy the
.icscontent or download theevent.icsfile. - Import it into your calendar app, or attach it to an email/website as an “Add to Calendar” link.
Key Features
- RFC 5545-compliant VCALENDAR/VEVENT structure, with all required fields (UID, DTSTAMP, DTSTART, DTEND).
- UTC timestamp conversion, avoiding timezone ambiguity regardless of the importing app’s configured timezone.
- Automatic line folding, wrapping long title/description lines per the 75-octet spec limit so parsers don’t choke on long text.
- Stable UID generation, so re-downloading after an edit doesn’t create a duplicate event if re-imported.
When to Use This Tool
- Adding an “Add to Calendar” download link to an event page, invite, or confirmation email.
- Quickly generating a one-off event file without a full calendar/scheduling backend.
- Testing how your app or site handles imported .ics files, using a known-valid sample.
Try It Now
Open iCal Event Generator directly, or press ⌘K and type the tool name from anywhere on the site.
Part of the Generators collection on WebdevToolbox — free, browser-based developer tools with no login required.