← Symbology index · 1D · specimen below
UPC-A, read on this page
12-digit retail barcode used in North America. Try it right here — the workbench below reads UPC-A from the lens or from a dropped photo, then files the value with a format tag. Specimen: 012345678905
01 — Capture
Viewfinder is off
Start it to read live. Frames are examined here — nothing streams out.
Idle — choose Start to open the viewfinder.
02 — Tray
0/100 keptDecoded values
Tray is empty
Every successful read lands here with its format tag, ready to copy or export.
Your tray never syncs anywhere — it lives in this browser's storage.
READING NOTES
Getting a UPC-A to resolve
Linear codes live or die on horizontal sharpness: keep both quiet zones (blank margins) inside the frame and the bars perpendicular to any motion blur. Side light beats head-on flash on gloss.
WHEN IT WON'T READ
Fallbacks that work
- A — Flatten the label; curves smear bars at edges.
- B — Back off slightly so autofocus can lock, then drift in.
- C — Key the printed digits into "Key it in" — same tray, same export.