static void Main(string[] args) { var code = @" public class Person(string lastName, string firstName) { public void Fubar () { // Demo int i = 0; } }"; var syntaxTree = SyntaxFactory.ParseSyntaxTree(code, options: new CSharpParseOptions(languageVersion: LanguageVersion.Experimental)); var codeBeautifier = new CodeBeautifier(); var beautifiedSyntaxTree = codeBeautifier.Visit(syntaxTree.GetRoot()).NormalizeWhitespace().SyntaxTree; Console.WriteLine(beautifiedSyntaxTree.ToString()); Console.ReadLine(); }