Contact · messaging · mailto: URI (RFC 6068)

An email, ready to send

Recipient, subject and body in a mailto: link. Scanning opens the mail app with all three filled in — a feedback address on a receipt, a job application on a poster.

Make this code now →

Opens the generator with this type selected. Everything happens in your browser.

Round WIA Code carrying an email link
Rendered by the same engine as the generator. Point the WIA scanner at it — or a plain camera at the small booster QR in the middle.

What the code carries

A mailto: URI (RFC 6068) with subject and body encoded. The mail app composes the message; the person reviews and sends it.

mailto: URI (RFC 6068)

What happens when it is scanned

  1. The scanner reads the address, subject and body from the code.
  2. It shows them on a card first.
  3. One tap opens the mail app with the message composed.

Why a WIA Code for this

Room for a real subject line and an opening sentence, not just an address.
No web form, no server, nothing to maintain — the mail app does the work.
Print it in the shape of your brand seal or a plain circle.

How much fits

Measured on the live engine (bytes of content, after error correction). The QR column is a standard QR code of the same printed size, for comparison.

GridWIA Code (bytes)Same-size QR (bytes)With booster QR
S · 64 modules · round23960—
M · 96 modules · round608151—
L · 128 modules · round11283221092

This page's example is 80 bytes. The booster QR is a small standard QR placed in the centre so phones without the WIA scanner still get somewhere useful — it leads to the web scanner, which then reads the full code.

Questions people ask

Is the mail sent automatically?
No. It is composed in the mail app; the person sends it.
Can I pre-fill several recipients?
One recipient keeps it simple and scannable; put others in the body if needed.
Will it open webmail?
It opens whatever handles mailto: on the phone — usually the mail app, sometimes Gmail on the web.
Does a plain camera work?
The booster QR opens the web scanner, which then opens the mail app.
Can the body contain line breaks?
Yes; they are encoded and restored in the mail app.
Make this code now →All kinds of content →

Other kinds of content

A business card the phone can saveScan to callA text message, pre-writtenAll kinds of content →

WIA Code is a radial-symmetry 2D code. The content lives in the code; there is no server in between when it is scanned. Generated with the WIA Code engine · scannable · no account needed