Check a QR code before you print it
Run a local decode and measurable image checks on any QR code — the one you just rebuilt, or a photo of a printed test copy. Nothing is uploaded.
Loaded from your repair
Drop, paste (Ctrl+V) or choose an image of a QR code
Tip: print one copy, photograph it with your phone and drop the photo here.
Nothing checked yet
Add an image of a QR code, or rebuild one on the repair page and follow “Check the rebuilt QR”.
Check the print, not just the file
- 01
Scan it on screen.
Point your phone at the rebuilt code on this page. If it opens the right content, the file is good.
- 02
Print one copy at the final size.
Same printer, same paper, same size as the real run. Module size, ink spread and substrate all change the result.
- 03
Photograph the print and check it here.
Drop the photo above. If the quiet zone or contrast suffered in print, this is where it shows.