The encryption: base64 encoding

Nah, you just XOR the data with itself and it becomes uncrackable.

Also it can be compressed down to 4 bytes as long as the data is not larger than around 4Mb, 8 bytes if you need more.

You are truly a mastermind.
What an excellent username for such a chain of comments
My god, that is absolute perfect encryption (completely uncrackable by brute force) and compression. This is genius and I’m gonna switch all my data to this encryption scheme.