Micro QR Codes
Definition: Micro QR codes are a compact variant of standard QR codes, using only one finder pattern instead of three, designed for very small printing spaces.
Standard QR codes have three large finder patterns (corner squares), which take significant space. Micro QR codes use just one, making them up to 60% smaller for the same data. They come in 4 versions (M1-M4) storing up to 35 numeric or 21 alphanumeric characters. Ideal for PCB boards, small electronics, jewelry, and other space-constrained applications.
Key points
- Single finder pattern (vs 3 in standard QR)
- Up to 60% smaller than standard QR
- Four versions: M1, M2, M3, M4
- Max capacity: 35 numeric / 21 alphanumeric
- Not all scanners support Micro QR
- Best for industrial and electronics use
Frequently asked questions
Can my phone scan a Micro QR code?
Not all phones support Micro QR. Most smartphone cameras read standard QR codes natively, but Micro QR may require a specialized scanner app.
When should I use Micro QR vs standard QR?
Use Micro QR only when space is extremely limited (PCBs, small components) and you have control over the scanning equipment. Standard QR is better for consumer-facing applications.
How much data can a Micro QR hold?
Much less than standard QR — maximum 35 numeric or 21 alphanumeric characters. Fine for short serial numbers, not for URLs.
Related terms
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