Calendar Event QR Code Generator: Add Events by Scan Free
By Aniket Nigam · Verified 2026-04-15 · Methodology
Quick Answer
A calendar event QR code encodes an iCalendar (vCalendar) entry so scanning adds the event directly to the phone's calendar app with date, time, title, and location pre-filled - no manual entry needed.
Format Syntax
Example:
How to Create a Calendar Event QR Code - Step by Step
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Open QRCrack's calendar QR tool.
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Enter the event name, start date and time, end date and time, and location.
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The time format is YYYYMMDDTHHMMSSZ - the T separates date from time and Z denotes UTC. Convert your local time to UTC if needed.
- 4
Add a description for extra context - keep it under 200 characters to avoid a dense QR pattern.
- 5
Generate, download, and test. Confirm the event appears correctly in your calendar app after scanning.
- 6
Place on conference agendas, event flyers, wedding invitations, or email footers.
Where to Use Calendar Event QR Code Codes
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Conference agendas - scan to add each session to the attendee's calendar.
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Event flyers - one scan saves the date without typing details.
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Wedding invitations - physical RSVP card with a QR that adds the ceremony and reception times.
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Product launches - press release QR that adds the launch event directly to journalists' calendars.
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Webinar promotions - add the webinar start time and the join link in the description field.
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Recurring sports fixtures - add a season opener, the QR description can note the weekly schedule.
Generate a Calendar Event QR Code Free
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Frequently Asked Questions
Which calendar apps recognize the vCalendar QR format?
Apple Calendar on iOS, Google Calendar on Android, and Outlook all handle iCalendar (ICS) format. Most third-party calendar apps also support it. The format is defined in RFC 5545 and has broad support.
How should I handle time zones?
The safest approach is UTC. Convert your local event time to UTC and append Z. Alternatively, specify the time zone using the TZID property in the vCalendar, but this adds length to the QR data.
Can I add recurring events with a calendar QR?
Yes - the RRULE field supports recurrence. Example: RRULE:FREQ=WEEKLY;COUNT=8 repeats the event weekly for 8 occurrences. However, complex recurrence rules add significant length to the QR.
What is the difference between DTSTART with Z and without?
The Z suffix means UTC (Coordinated Universal Time). Without Z, the time is treated as 'floating' time with no time zone, which some calendar apps interpret as local device time. Use Z with a UTC timestamp for unambiguous event times.
Other QR Code Formats
WiFi QR Code
WIFI:T:{security};S:{network_name};P:{password};
vCard QR Code
BEGIN:VCARD
URL QR Code
https://{domain}/{path}?{query}
Email QR Code
mailto:{email}?subject={subject}&body={body}
SMS QR Code
SMSTO:{phone_number}:{message_body}
Phone QR Code
tel:+{country_code}{local_number}
Geo Location QR Code
geo:{latitude},{longitude}
Bitcoin Payment QR Code
bitcoin:{address}?amount={btc_amount}&label={lab
Plain Text QR Code
{your text content, any characters}
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