how to remove debug from flutter code example

Example 1: how to remove debug tag in flutter

Inside your MaterialApp widget, add the following property.

MaterialApp(
 debugShowCheckedModeBanner: false
)

Example 2: remove debug from flutter emulator

debugShowCheckedModeBanner: false,
return new MaterialApp(
    debugShowCheckedModeBanner: false,
    home: new Column(
        ...
    )
);