The gold standard (not really) in encryption solutions! The .exe file found in ./x64/Release/BaseREPR-Desktop.exe works on all 64 bit Windows machines.
Capable of encrypting/decrypting a string containing the following characters:
0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-._+!'(%,$/:=*;)?<>@&^%|[]{} `#\\~\t\n
Note: There are some rare decryption artifacts, maybe due to the limited size of unsigned 64-bit integers in C++.