EmptyStringToVisibilityConverter

NumberToPercentageConverter

1	// Value: 25.0

1	<TextBlock Text="{x:Bind Value, Converter={StaticResource NumberToPercentageConverter}, ConverterParameter=WithPercentageSymbol}" />

1	// Output: 25 %

NullToVisibilityConverter

BoolToVisibilityConverter

1	<TextBlock Visibility="{x:Bind boolValue, Converter={StaticResource BoolToVisibilityConverter}}" />

BoolToObjectConverter

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<dev:BoolToObjectConverter x:Key="BoolToXConverter"
                             FalseValue="Collapsed"
                             TrueValue="Visible" />

you can run demo and see this feature.