# base64 > Encode or decode file or `stdin` to/from base64, to `stdout`. > More information: . - Encode a file: `base64 {{path/to/file}}` - Wrap encoded output at a specific width (`0` disables wrapping): `base64 {{-w|--wrap}} {{0|76|...}} {{path/to/file}}` - Decode a file: `base64 {{-d|--decode}} {{path/to/file}}` - Encode from `stdin`: `{{command}} | base64` - Decode from `stdin`: `{{command}} | base64 {{-d|--decode}}`