QR Code Error Correction Levels Explained (L, M, Q, H)
Choose the correct error correction level so your QR codes remain readable even if damaged or dirty.
Understanding Error Recovery
QR code technology utilizes Reed-Solomon error correction to recover data if part of the printed symbol is damaged, covered, or obscured.
The Four Levels
- Level L (7%): Cleanest pattern, minimal print recovery.
- Level M (15%): Default standard for general marketing use.
- Level Q (25%): Good for industrial environments.
- Level H (30%): High recovery capacity, essential when embedding center logos.