How to create an email QR code
Write the template so it remains clear to every scanner. A short message produces a less dense code and leaves room for the sender to add personal details.
- Enter the intended recipient address. Check the domain and spelling carefully because the address is stored directly in the QR code.
- Optionally add a recognizable subject and a short message, such as a reference number, support question, feedback prompt, or registration request.
- Scan the preview on iOS and Android. Confirm that the expected mail app opens and every completed field appears correctly in the draft.
- Download the PNG, place it with strong contrast and a clear margin, and test it again at the final print or screen size.
The mailto format and encoded content
An email QR code uses a mailto link. The address follows mailto: directly. Subject and message are added only when provided and are safely encoded as URL parameters. An example payload looks like this:
mailto:support@example.com?subject=Product%20question&body=Hello%20team
Spaces, non-ASCII characters, line breaks, and ampersands appear percent-encoded in the technical content. The mail app converts them back into readable text when opening the draft. The code contains no attachment or login details and cannot send anything itself. Without a subject and body, the payload contains only mailto: and the recipient address.
Practical uses for email QR codes
On packaging or instruction manuals, an email QR code can prepare a support request with the correct subject. Event organizers use one for registrations and questions, while sales teams place it on brochures for quote requests. Feedback cards, exhibitions, property listings, and product displays also benefit from a correctly transferred contact address.
A specific subject helps route incoming mail, for example “Question about Product A” or “Workshop registration.” Leave space in the message for personal information. Publicly displayed codes should use an address intended for external requests; private mailboxes and internal-only distribution addresses are poor choices for open material.
Compatibility and limitations
After scanning, the device normally opens its configured default mail app. If no app or account is configured, the operating system may show a chooser, an error, or no useful action. The draft can look slightly different in Apple Mail, Gmail, Outlook, and other applications.
The QR code is static. Its recipient, subject, and text cannot be changed after printing. Long templates create a denser pattern and leave less room for personalization. This generator deliberately supports one address, subject, and message; CC, BCC, and attachments are outside the generated format.
Privacy: The recipient, subject, and message are encoded entirely within your browser. OnlineToolkit.ch does not receive, store, or send those details.