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uniteapps.dk/en/ics-file-generator

ICS file generator – calendar invitation for many via BCC

Create an .ics calendar file for your event and send it by BCC. Recipients add it to their calendar without seeing who else is invited.

ICS File Generator
Generate an ICS file for your event that can be imported into calendar apps
Try:
How to use the ICS file

1. Download the ICS file by clicking the button above

2. Open the file in your calendar app (Outlook, Google Calendar, Apple Calendar, etc.)

3. The event is imported automatically with all its details

4. You can also send the ICS file as an attachment in an invitation to members

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About the ICS file generator

The ICS file generator makes a calendar file (.ics) for your event. You send the file as an attachment in an ordinary email, and recipients add the event to Outlook, Google Calendar or Apple Calendar with one click. You can choose the time zone, location, meeting link and recurrence. The file is created in your browser and is never sent to us.

Send a calendar invitation to many people without showing the guest list

An ordinary meeting request in Outlook shows the whole attendee list to everyone who receives it. If you invite 200 colleagues, customers or members, they can all see each other's names and email addresses. Send an .ics file in an email instead, with the recipients in Bcc. Each recipient sees only themselves and can still add the event to their calendar.

The file contains no attendee list. It describes only the event: title, time, location, description and, if you like, a meeting link. That makes it a good fit for staff clubs, employee associations, marketing events, courses and union representatives calling meetings.

How to send the invitation by Bcc

  1. Fill in the name, start and end time and, if you like, the location, description and meeting link above.
  2. Click Generate and download ICS file. The file is saved as, for example, christmas-party.ics.
  3. Create a new email. Put your own address in To and all the recipients in Bcc. In Outlook and Gmail you switch on the Bcc field to the right of the To field.
  4. Attach the .ics file and write the invitation in the body of the email.
  5. The recipient opens the attachment and chooses to save or add the event to their calendar.
What can be generated?
  • One-off event: A Christmas party, annual general meeting, course or webinar with a fixed start and end time.
  • Recurrence: Daily, weekly, every 2 weeks, monthly or yearly — with an optional end date and specific weekdays.
  • Time zones: Recipients in other countries see the time in their own time zone.
  • Meeting link: A link to Teams, Zoom or Google Meet right in the calendar entry.
The fields explained
  • Event name: The title recipients see in their calendar. Also used as the file name.
  • Start and end: Date and time. Both are required.
  • Time zone: Filled in automatically with your computer's time zone. Change it only if the event takes place somewhere else. The file contains the time zone's daylight saving rules, so Outlook shows the right time.
  • Repeat: How often the event repeats and when the series ends.
  • Location, description and link: Optional. Shown when the recipient opens the entry.

Example invitations

The staff club's Christmas party

Friday 4 December 2026, 18:00–23:30 in the canteen. 240 members are invited.

No recurrence. The email is sent with all 240 in Bcc — nobody can see who else is invited.

File to download:christmas-party.ics

The shop steward's members' meeting

A meeting every other Tuesday, 15:30–16:30, from 5 January 2027, with a Teams link for those working from home.

Recurrence: every 2 weeks with an end date of 30 June 2027 — 13 meetings in one file.

File to download:members-meeting.ics
What employers should keep in mind

Email addresses are personal data. If you send an invitation to customers or external contacts with everyone in the To or Cc field, you share their addresses with each other. Bcc and an .ics file avoid that.

Open the file in your own calendar before you send it, and check the time, recurrence and time zone.

What union representatives and employees should keep in mind

An attendee list for a union meeting can reveal who is a member of a trade union. Trade union membership is a special category of personal data under Article 9 of the GDPR. Send the invitation with the recipients in Bcc.

If you hold meetings during working hours in Denmark, check public holidays and days off with the Danish public holidays calculator before the dates go out.

Questions and answers

How do I invite many people without showing the guest list?

Create an .ics file with the event and attach it to an email with the recipients in Bcc. Each recipient sees only themselves, but can still add the event to their calendar.

What is an .ics file?

A text file in the iCalendar standard. Outlook, Google Calendar, Apple Calendar and most other calendars can open it and create the entry from it.

Will I be told who is coming?

No. The file publishes an event; it is not a meeting request with reply buttons. If you need sign-ups, put a link to a registration form in the description — or make a QR code for the noticeboard.

Can I change the event after the file has been sent?

Not automatically. Every file is a separate event, so a new file becomes a new entry in the calendar. Send the corrected file and ask recipients to delete the old entry.

Does the file work on a phone?

Yes. On iPhone and Android you open the attachment in the email and choose to add it to the calendar.

Does UniteApps store my details?

No. The file is created in your browser and downloaded directly. The title, location and description are not sent to our server.

Content last reviewed October 2026.