Encoding data in decimal is more efficient for storing data in QR codes compared to base64, despite requiring more characters initially. The magic of QR code modes optimizes the storage of decimal data, resulting in QR codes that either store more data or are easier to scan. The author explores how decimal encoding slightly reduces the density of a QR code containing a URL, explaining the advantages of using decimal encoding over base64. Additionally, the post delves into the complexities of encoding schemes, QR code modes, and the benefits of using decimal encoding for storing data in URLs efficiently.
https://huonw.github.io/blog/2024/03/qr-base10-base64/