Local QR to STL
& Matter tools
Create a free QR code STL for 3D printing, generate or decode a Matter setup code, or generate a batch of QR images from CSV. All in your browser.
Choose a tool for the job
Make one QR, generate a CSV batch, or create a printable QR or barcode. Choose the output you need.
QR Code to STL Generator
Turn a link or text into a raised QR model. Set the dimensions, then download files for your first print.
FABRICATE02Matter QR Generator & Decoder
Create a device setup QR or decode an existing MT: payload. Commissioning fields, kept local.
CONNECT03Private QR Code Generator
Make a static QR for a link or label. No redirect service, no account, and no expiry imposed by us.
GENERATE04Bulk QR Code Generator
Upload 1–20 CSV rows. Generate PNG or SVG files with consistent settings and download a ZIP with a results report.
BATCH05Barcode to STL Converter
Create Code 128, EAN-13, or UPC-A barcodes. Download a printable STL and matching SVG or PNG references.
BARCODE06Crypto Payment QR Generator
Create a Bitcoin, Ethereum, or Lightning payment QR. Check the payment details and download a PNG.
PAYMENTQR codes for
3D printing.
The STL is built from the QR pattern, with its clear border preserved. We check the QR square size and flag dense content. Keep the matching SVG or PNG reference for your first physical scan test.
Open the advanced 3D builderPrinting an asset ID or product number? Use the 3D print barcode generator for Code 128, EAN-13, and UPC-A labels.
- Sample print width
- 65 MM
- Raised pattern
- 1.5 MM
- Backing thickness
- 2 MM
- Clear border on each side
- 4 MODULES
Dimensions from our downloadable sample. Always print and scan a test before making a batch.
EXAMPLE PRINT PROFILES
Start with a profile, then test the real print
These are not guaranteed production settings. They are practical starting points that make the tradeoffs visible before you export STL.
Product tag prototype
65-80 mm
Short support URL on an indoor PLA part
- Width
- 65-80 mm
- Material
- Matte PLA or light PETG
- Geometry
- 2 mm backing, 1.5 mm raised squares
- Scan test
- Scan from 20-40 cm with two phones before making copies.
- Watch for
- Long URLs can make the QR squares too small. Shorten the URL before shrinking the model.
Event badge or table label
70-90 mm
Temporary but handled by many people
- Width
- 70-90 mm
- Material
- PLA, PETG, or laminated flat fallback
- Geometry
- Raised squares with a protected clear border
- Scan test
- Test at arm length, from slight angles, under venue lighting.
- Watch for
- Glossy finishes and busy frames can reduce camera contrast.
Wall sign or booth display
100-140 mm
Visitors scan from farther away
- Width
- 100-140 mm
- Material
- Matte plastic, painted plate, or high-contrast insert
- Geometry
- Moderate raised height, high contrast, no clutter near the clear border
- Scan test
- Test from the intended walking distance, not just close-up.
- Watch for
- A code that scans on a desk may fail after mounting height and glare change.
Engraved or paint-filled plate
80 mm or wider
Permanent surface where raised squares may wear down
- Width
- 80 mm or wider
- Material
- Acrylic, metal, resin, or sealed print
- Geometry
- Recessed QR squares with clean edges and paint fill
- Scan test
- Scan after finishing, cleaning, and final surface treatment.
- Watch for
- Tool width, fill bleed, and rough edges can merge small QR squares.
Before you print a batch
- Compare the STL preview against the clean SVG reference before slicing.
- Print one final-size sample before producing a batch.
- Scan with more than one phone in the real lighting environment.
- Check normal user angles, not only a perfect straight-on scan.
Generate the first STL, then prove it scans
Create the STL package, print one final-size sample, and scan it in the real environment before scaling production.
Build the first STLYour link.
Your code. Yours.
Just need a QR for a document or flat label? Create one here and download the image. Your content is encoded directly, without an intermediate redirect.
Open the private QR generatorPrivate QR generator
Create a private QR code
QR content stays in this browser. No redirect links. Never expires.
Need several QR codes? Generate up to 20 PNG or SVG files from a CSV and download one ZIP.
Generate a batchHow to 3D Print a QR Code That Actually Scans
Choose size, depth, contrast, material, and scan checks for a reliable 3D printed QR code.
Plan the 3D QR Code Workflow
Choose between a first-print generator, direct STL export, printer-aware presets, and a detailed print guide.
Why Printed QR Codes Fail
The most common scan failures in physical deployment and how to avoid them.
Best Size for a 3D Printed QR Code
Choose QR square size, clear border, and overall dimensions that survive printing.
How to Make a Scannable 3D QR Code
A practical process for turning a QR into something that still scans after fabrication.
Emboss vs Engrave QR Code
Pick the geometry that matches your material, lighting, and manufacturing process.
Before you begin.
Is priv QR free and no sign-up?
Yes. Core priv QR tools are free to use and do not require an account, login, or sign-up. QR content is generated in the browser.
Can QR codes be 3D printed?
Yes. QR codes can be 3D printed when the small squares are large enough, the clear border is preserved, and the physical part has enough contrast for phone cameras.
What size should a 3D printed QR code be?
It depends on how much text the QR stores and how far away people scan it. Start around 65-80 mm for a general prototype, then increase width if the small-square warning appears.
What thickness works for an STL QR code?
A 2 mm backing with about 1-2 mm of raised height is a practical starting point for many prototypes. Material and finish can require more height.
Can I generate QR codes in bulk?
Yes. Upload a CSV with 1–20 data rows to the Bulk QR generator. Choose PNG or SVG and download the generated files in a ZIP with a per-row results report. Processing stays in your browser.
Where is the full 3D Builder?
Use /qr-code-to-stl for a free STL, SVG, and PNG download. Open /3d for printer-aware recommendations and raised or recessed models, or /3d-qr-code for the complete workflow guide.