basenc
Encode or decode file or standard input using a specified encoding, to standard output.
TLDR
Encode a file with base64 encoding
$ basenc --base64 [path/to/file]
Decode a file with base64 encoding
$ basenc --decode --base64 [path/to/file]
Encode from stdin with base32 encoding with 42 columns
$ [command] | basenc --base32 -w42
Encode from stdin with base32 encoding
$ [command] | basenc --base32