What is error correction in QR codes?
Created on 11 August, 2022 | Frequently Asked Questions (FAQ) |
Find out what error correction you can use depending on the size of the QR code
Thanks to the error correction of a QR code, it can be decoded even if the QR code is partially hidden or slightly damaged. Thanks to the pattern with duplicate information (redundancy) of the content, a QR code can be read
There are four error correction levels: L, M, Q and H. Each level has its own damage rate, with L being the lowest and H the highest. Which one to use is determined by the actual size of a QR code when it is printed.
- L - Low 7%
- M - average 15%
- Q - high 25%
- H - up to 30%