How to remove the line separators from a List in SwiftUI without using ForEach?

iOS 15:

This year Apple introduced a new modifier .listRowSeparator that can be used to style the separators. you can pass .hidden to hide it:

List {
    ForEach(items, id:\.self) { 
        Text("Row \($0)")
            .listRowSeparator(.hidden)
    }
}

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iOS 14:

you may consider using a LazyVStack inside a ScrollView instead (because iOS is NOT supporting UIAppearance for SwiftUI lists anymore).

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iOS 13:

⚠️ This method is deprecated and it's not working from iOS 14

There is a UITableView behind SwiftUI's List for iOS 13. So to remove

Extra separators (below the list):

you need a tableFooterView and to remove

All separators (including the actual ones):

you need separatorStyle to be .none

Example of usage

init() {
    if #available(iOS 14.0, *) { 
        // iOS 14 doesn't have extra separators below the list by default.
    } else {
        // To remove only extra separators below the list:
        UITableView.appearance().tableFooterView = UIView()
    }

    // To remove all separators including the actual ones:
    UITableView.appearance().separatorStyle = .none
}

var body: some View {
    List {
        Text("Item 1")
        Text("Item 2")
        Text("Item 3")
    }
}

Note that a static list doesn't show extra separators below the list by default

iOS 15+:

Simply add .listRowSeparator(.hidden) as a modifier to the view contained in the List. https://developer.apple.com/documentation/swiftui/texteditor/listrowseparator(_:edges:)

List {
    ForEach(garage.cars) { car in
        Text(car.model)
            .listRowSeparator(.hidden)
    }
}

iOS 13 only:

Adding UITableView.appearance().separatorColor = .clear anywhere in your code before the List appears should work. While this solution removes the separators, note that all List instances will be bound to this style as there’s no official way currently to only remove separators of specific instances. You may be able to run this code in onAppear and undo it in onDisappear to keep styles different.

Also note that this code assumes Apple is using a UITableView to back List which is not true in the iOS 14 SDK. Hopefully they add an official API in the future. Credit to https://twitter.com/singy/status/1169269782400647168.