| alphabet | Standard base64 alphabets | 
| b64_chunk | Utility Functions | 
| b64_wrap | Utility Functions | 
| decode | Encode and decode using base64 | 
| decode_as_string | Encode and decode using base64 | 
| decode_file | Encode and decode using base64 | 
| encode | Encode and decode using base64 | 
| encode_file | Encode and decode using base64 | 
| engine | Create an encoding engine | 
| new_alphabet | Standard base64 alphabets | 
| new_config | Create a custom encoding engine | 
| new_engine | Create an encoding engine |