STEP 01
Paste your link
The restaurant menu, your Google reviews page, Instagram, the Wi-Fi password or any web address. The code is built as you type.
Free · no sign-up · two-colour 3MF
QR code generator for 3D printing
Paste your link, style the code and download it as a PNG or SVG — or as a print-ready object: desk stand, keychain or wall plate. The 3MF carries both colours inside, so the code comes out with real contrast and actually scans.
Stand—
Drag to rotate · scroll to zoom
Building geometry…
- Module
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- Size
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- Filament approx.
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- Triangles
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- QR version
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Your nozzle0.4 mm
The 3MF keeps both colours inside the file. Open it in Bambu Studio, Orca, PrusaSlicer or Cura and you will see the base and the relief as two parts, each with its colour already assigned.
How it works
From a link to a printed piece in 3 steps
Nothing to install and no account to create. Everything is generated in your browser: the link you type never leaves your device.
STEP 02
Pick a design and an object
Colours, dot shape and your logo or an emoji in the centre. Then choose desk stand, keychain or wall plate, add the name of the business and pick the two filaments.
STEP 03
Download the 3MF and print
Open it in your printer's software. Each part arrives with its colour assigned: all you do is hit print. If your printer is older, download the STL.
What it is for
What a 3D printed QR code is actually used for
A sticker peels, stains and curls. A printed piece survives the cloth, the rain and the years, and looks better on the table.
Restaurant menu
One stand per table with the QR of the digital menu. You change the prices on your site and the stand still works.
Google reviews
The classic «leave us a review» next to the till. It links straight to the review form, with nobody having to search for the business.
Keychains for events
Trade fairs, weddings, conferences or handing out kit: a keychain linking to the programme, the photo album or the manual.
Wi-Fi where people stay
Holiday flats, guest houses and bars: the guest scans and connects without typing out an awkward password.
Shop and window
A plate in the window with your online shop or your Instagram, readable even with the shutter down.
Machines and maintenance
Screw a plate to each machine linking to the manual, the service history or the fault report.
About this tool
Two-colour 3D QR codes, with no manual editing
Making a QR code for 3D printing is usually a mess: you export the QR as an image, trace it to SVG, import it into a modeller, extrude it, sit it on a base, and you still have to split the colours in the slicer. This tool does that whole trip in one go and hands you the finished file.
Why the 3MF and not just the STL
An STL only stores the shape: triangles, nothing else. It is what printers used ten years ago and it still works, but everything opens in a single colour and you have to separate the parts by hand. The 3MF is the modern format and it also stores the material and the colour of each part. That is why the file you download here already arrives with the base in one filament and the raised code and text in the other.
Contrast is what makes it scan
A QR printed in one colour reads badly or not at all: the phone's camera has to tell the dark modules from the light background. With two filaments the problem disappears. The safest combination is a light base and a dark relief —white with black, beige with dark brown— and it is worth avoiding colours that are close to each other, or shiny filaments that throw reflections.
Sizes that work
As a reference: a 3D QR keychain reads well from about 35–40 mm a side, a desk stand has room to spare at 80–100 mm, and a wall plate meant to be scanned from a distance wants 120 mm or more. The usual relief is 0.8 to 1.2 mm, four to six layers: enough for a clean colour change without making the print longer.
How it gets printed
With a multi-colour printer (AMS, MMU or similar) you assign a filament to each part and that is it. With an ordinary single-extruder printer you can get the same result: because the relief starts exactly where the base ends, all it takes is a filament change at that height. Almost every slicer lets you set one with a click on the layer bar.
FAQ
What people ask before printing
Does a 3D printed QR code really scan?
Yes, as long as there is contrast between the relief and the base and the size is right. That is why this tool works in two colours and defaults to the highest error correction level: even if a corner gets dirty or a layer comes out rough, the code still reads. Test the piece with your own phone before printing fifty.
What is the difference between the 3MF and the STL?
The STL stores only the geometry, so the piece appears in a single colour and you have to separate the parts by hand in the slicer. The 3MF also stores the colour and the material of each part, so when you open it the base and the code are already distinct.
Download the 3MF unless your software is very old; the STL is there as a fallback.
Do I need a multi-colour printer?
No. If you have AMS, MMU or a dual extruder it is immediate. With a single-filament printer you get the same result by inserting a filament change at the height where the relief begins: the base ends at 3 mm, say, and from there you print in the second colour.
Can I change the link after the piece is printed?
The code itself cannot be changed, it is in the plastic. The usual answer is to point the QR at an address you control that redirects (for example yourbusiness.com/menu) and change where that redirect goes whenever you need to. The piece keeps working for good.
What size and relief height should I pick?
Keychain: 40–50 mm. Desk stand: 80–100 mm. Wall plate: 120 mm or more if it gets scanned from a distance. For the relief, 0.8 to 1.2 mm is spot on. Going above 1.5 mm does not read any better and only makes the print longer.
Can I put my business logo in the centre?
Yes in the PNG and the SVG: upload your logo and it appears in the middle of the code. On the 3D piece the centre is left flat and empty, because a logo with gradients or photographs cannot be turned into relief. If you want something in the middle of the printed piece, use an emoji: it extrudes as a silhouette and comes out very clean.
Is it free? Do I have to sign up?
It is free, there is no sign-up and no download limit. The site is paid for by the ads you see on the page. The codes are generated in your browser: neither the link nor the logo you upload is sent to any server.
Can I sell the pieces I print?
Yes. The files you generate are yours and you can use them commercially: print for your customers, sell them in your shop or include them with your orders. The QR standard is open and needs no licence.
Guides
The maths behind a code that scans
The sizes that work, the filaments that ruin a read and the slicer settings nobody mentions. The numbers come from measuring this generator, not from repeating what forums say.
How to 3D print a QR code that scans first time
The long one: the nine steps between a printed QR that works and one that ends up in a drawer.
What size does a 3D printed QR code need to be
The whole calculation, with tables for 0.4 and 0.6 mm nozzles and how size relates to scanning distance.
Which filament pairs work and which ones ruin the scan
Why red on black does not read even though it looks different, and the list of pairs that do work.
Your 3D printed QR code will not scan: nine causes and their fixes
An ordered diagnosis, from the most common cause to the rarest, with the check that rules each one out.
QR code keychains: sizes, the ring hole and durability
Where the hole goes so it does not eat the quiet zone, what thickness survives a pocket, and how many fit per plate.
All the guides → 5 of 35 translated so far; the rest are in Spanish.