About email QR codes
An email QR code opens the phone’s mail app with the recipient, subject, and message body already filled in. The person only has to press send.
It is genuinely useful anywhere you want a specific, structured reply: a support poster with the subject pre-set to a location code, a feedback card on a table, or a returns label that already names the order type.
How to make one
- Enter the address the mail should go to.
- Add a subject if you want replies grouped or routed automatically — this is where most of the value is.
- Optionally pre-write the body. Leave blank lines for the sender to fill in.
- Scan the preview to check your mail app opens with the right details, then download.
What gets encoded
The code holds plain text in a format phones recognise. For this type it looks like this:
mailto:hello@example.com?subject=Table+12&body=Your+message
A standard mailto: link. The subject and body are URL-encoded, so punctuation, accents, and line breaks survive intact.
Tips
- A fixed subject line lets you filter incoming mail into a folder automatically.
- Keep the body short. A long pre-written message makes the code dense, and most people delete it before sending anyway.
- The sender can edit everything before sending, so never rely on the pre-filled text being intact.
- For an address you might change, use a URL code pointing at a contact form instead.
Frequently asked questions
Does this send the email automatically?
No, and no QR code can. It opens a draft in the person’s mail app with the fields filled in. They still have to press send, which is what stops QR codes being used to send mail on your behalf.
Can I include line breaks in the message?
Yes. Press Enter in the message box and the line breaks are encoded properly. Bear in mind each character makes the code slightly denser.
Do you see what I type here?
No. The code is generated entirely in your browser. Nothing you enter on this page is sent to our servers or stored anywhere.
Does this QR code expire?
No. The details are encoded directly into the pattern itself, so the code does not depend on this site or any account. It keeps working even if this site disappears, with no scan limit and no watermark.
Other QR code types
New to this? The QR code guide covers error correction, sizing for print, and the four reasons codes fail to scan.