 <p>You have to create an NSMutableParagraphStyle in combination with an NSAttributedString in order to display text as justified. The important part is to set NSBaselineOffsetAttributedName to 0.0.</p> <p>Here's an example how to put everything together:</p> <pre><code>let sampleText = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum." let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.alignment = NSTextAlignment.Justified let attributedString = NSAttributedString(string: sampleText, attributes: [ NSParagraphStyleAttributeName: paragraphStyle, NSBaselineOffsetAttributeName: NSNumber(float: 0) ]) let label = UILabel() label.attributedText = attributedString label.numberOfLines = 0 label.frame = CGRectMake(0, 0, 400, 400) let view = UIView() view.frame = CGRectMake(0, 0, 400, 400) view.addSubview(label) </code></pre> <p>Credits for NSBaselineOffsetAttributedName: <a href="http://stackoverflow.com/a/19445666/2494219">http://stackoverflow.com/a/19445666/2494219</a></p>