🧊 3D printing

3D QR Code Generator (STL)

Turn a link or text into a 3D printable QR code. Set the plate size and heights in millimeters, check it with a real test scan, and download an STL for your slicer.

Real, scannable QR matrixSizes in millimetersOne or two STL files
01

Content

What opens when the printed code is scanned

Longer content and higher error correction need a larger print size.

Error correction
Q or H survives small print defects better, but adds modules.
02

Model size

In millimeters, as your slicer will import it

03

Export

Binary STL, opens in Cura, PrusaSlicer, Bambu Studio and Tinkercad

Switch filament at 2 mm for two colors in a single print.

How it works

How to 3D print a QR code

New to QR codes? Read how to create a QR code with our free online generator.

  1. STEP 01

    Add your content

    Enter a website URL or text. Short content gives bigger modules, which print more reliably.

  2. STEP 02

    Set the size

    Choose the plate width, base thickness and code height. Keep each module at 1.2 mm or more for a 0.4 mm nozzle.

  3. STEP 03

    Download and print

    Download the STL, slice it and print the base in a light color and the code in a dark one. Test-scan the print before you use it.

Printing tips

Get a 3D printed QR code that scans

Use two contrasting colors

Phones read contrast, not height. Switch filament at the top of the base, or load the two STL files as one multi-color object.

Mind the module size

Most FDM printers need modules of 1.2 mm or more. Make the plate wider or shorten the link if the tool warns you.

Print flat, top surface up

Print the plate flat on the bed with a fine top layer. Ironing or a 0.12 mm layer height gives cleaner edges.

FAQ

Frequently asked questions

How do I make a 3D printable QR code?

Enter your link or text above, set the size, and download the STL. Open it in your slicer (Cura, PrusaSlicer, Bambu Studio or Tinkercad) and print it with two colors.

What is a QR code to STL converter?

It turns the QR code’s grid of dark modules into a 3D model: a flat base plate with each dark module raised as a block, saved as an STL file.

Will a 3D printed QR code scan?

Yes, if the code contrasts with the base and the modules are large enough. This tool runs a real test scan on the code and warns you when modules are too small to print.

Can I make the QR code in two colors?

Yes. Choose β€œTwo STL files” to get base.stl and code.stl in one ZIP, or use one STL and change filament at the base height shown on the page.

Is it free?

Yes. A 3D QR code counts as a static QR code, which is free and unlimited on every plan. You only need a free account to download. See plans.