DART

base64encode flutter

String text = "base64encode.tech";
Codec<String, String> stringToBase64 = utf8.fuse(base64);
String encoded = stringToBase64.encode(text);
print('base64: $encoded');

base64encode flutter

import 'dart:io' as Io;

final bytes = await Io.File(image).readAsBytes();
// or
final bytes = Io.File(image).readAsBytesSync();

base64encode flutter

String base64Encode(List<int> bytes) => base64.encode(bytes);