you can use NSAttributed String
for load in UILabel or use UItextView
to load HTML String for e.g
let htmlString: String = "<p>\r\n\t Whether you are viewing a premium-quality 2D picture or seeing incredible 3D depth, images are breathtakingly real in Samsung Full HD. Combine with a 3D TV and 3D active shutter glasses to view the latest Hollywood 3D titles or amplify your viewing experience by upconverting 2D content to immersive 3D.\r\n</p>"
let attrStr: NSAttributedString = try! NSAttributedString(data: htmlString.dataUsingEncoding(NSUnicodeStringEncoding), options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil)
yourlabel.attributedText = attrStr
for additional help see this
else if you need third party lib use RTLabel it will load the all type of string in label