Sha 256 Description Code

SHA-256 is a hash not a code and therefore cannot be irreversible/decrypted.

There is no direct way to decode it because cryptographic hash function is that you can't undo it. The most you can do is to generate the different string that provides the same hash.

Encryption is a proper (two way) function. It's reversible, you can decrypt the mangled string to get original string if you have the key.