Deliveries and rural addresses
A gate, a farm track or a building inside a campus often has no address a satnav understands. A code on the gatepost or the order confirmation takes the driver to the exact spot.
Turn a latitude and longitude into a code that opens the spot in the phone's maps app. Nothing is uploaded, and the code never expires.
A location QR code encodes latitude and longitude as a geo: URI, so a scan opens the phone's map app at that exact spot with no redirect server.

A gate sign with a geo link puts a pin on the exact entrance. Coordinates do not depend on a mapping service guessing which end of a long road the address means.
A pair of coordinates is a small payload: this one is a version 2 symbol at level M, 25 modules across, which prints cleanly at 20 mm.
Two formats, and which phones open each one.
The generator writes one of two payloads from the same coordinates. The default is a geo URI, the form defined in RFC 5870:
Latitude comes first, then longitude, in decimal degrees on the WGS 84 datum that every phone uses. Android hands a geo link to the default maps app, which drops a pin on the spot. The camera app on iPhone does not act on geo links, although many third-party scanner apps do. If the code has to work for everyone, switch the format to the Google Maps link:
That is an ordinary web address. Any phone opens it in the browser, and a phone with Google Maps installed hands it to the app. The comma between the two numbers is percent-encoded as %2C, which the generator does for you.
To find coordinates, long-press a spot in Google Maps and copy the two numbers that appear, or drop a pin in Apple Maps and read them from the pin's details. Four decimal places locate a point to about 11 metres, which is enough for an entrance; six places are accurate to about 10 centimetres.
The geo form is about 25 bytes and fits a version 2 symbol. The Google Maps form is about 67 bytes and needs version 5 at level M, so it prints a little larger for the same module size. Both are small compared with a contact card.
Places that do not move, printed on things that stay put.
A gate, a farm track or a building inside a campus often has no address a satnav understands. A code on the gatepost or the order confirmation takes the driver to the exact spot.
Print the venue entrance or the overflow car park on tickets, posters and the last direction sign. Visitors scan once instead of retyping a postcode that lands them at the wrong end of the site.
A marker post on a trail, a plot in an allotment or a point on a construction site can carry its own coordinates, so anyone with a phone can navigate back to it or report it.
Other content types from the same client-side generator.
Put the date, time and venue of an event into one code that adds it to the phone's calendar.
Link a page on your own site, such as directions with a map embed and parking notes.
A contact card with your postal address that saves straight to the phone's contacts.
What people ask before they print one.