I made this side tool to visualize SHA-256 while building a loyalty card wallet application to easily identify if a collected stamp is certified by the issuer by simply seeing it, instead of scanning something like a QR code or matching a serial number.

I think there are more potential use cases, like creating a random avatar based on an email address or something else. Feel free to share your feedback :)

source code: https://github.com/tonytonyjan/crypto_flora