Matter QR Tool
Decode a Matter QR image, inspect the extracted payload, and generate an SVG or STL export.
Everything stays in your browser by default. Only the optional live CSA DCL lookup sends data, and it sends just the extracted vendor and product IDs.
1. Upload Photo & Decode
Upload a photo of the device's Matter QR code to extract the setup payload.
If photo decoding does not find a QR code, you can scan the label with a third-party QR app, copy the MT: value, and paste it into the field in step 2.
2. Review Payload
The MT: value is the Matter setup payload stored in the QR code. It contains the commissioning data used to pair the device, so it should be treated as sensitive.
Optional: query the official CSA Distributed Compliance Ledger for live vendor and model records. This sends only the extracted vendor and product IDs, not the setup PIN or full QR payload.
3. Export
STL Settings
Use the nozzle and layer settings from your slicer profile here. The tool will size the QR automatically.
Your Printer
QR Code Output
These control how chunky the QR blocks are and whether the STL should be mirrored for underside use.
A default of 4x nozzle width per QR square is a good starting point for reliable prints.
Instructions for Bambu Lab / OrcaSlicer
- Right-click the part you want to modify.
- Choose
Add modifier, thenLoad, and select the QR-code STL. - Position the modifier where you want the QR.
- Change the filament color so it shows up on the finished print.
- If the final visible QR would end up reversed, enable the mirror option before exporting.