diff --git a/ex09/ft_strcapitalize.c b/ex09/ft_strcapitalize.c
new file mode 100644
index 0000000..b54c9a5
--- /dev/null
+++ b/ex09/ft_strcapitalize.c
@@ -0,0 +1,53 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strcapitalize.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tischmid <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/03/19 11:27:43 by tischmid          #+#    #+#             */
+/*   Updated: 2023/03/19 11:44:36 by tischmid         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+char	*ft_strcapitalize(char *str)
+{
+	int		i;
+	int		inside_word;
+	int 	is_alpha;
+	int 	is_numeric;
+	char	c;
+
+	inside_word = 0;
+	i = -1;
+	while (str[++i] != '\0')
+	{
+		c = str[i];
+		is_alpha = (c | 32) >= 'a' && (c | 32) <= 'z';
+		is_numeric = c >= '0' && c <= '9';
+		if (!inside_word && (is_alpha || is_numeric))
+		{
+			inside_word = 1;
+			if (is_alpha)
+					str[i] = str[i] & 95;
+		}
+		else if (inside_word && (is_alpha || is_numeric))
+			str[i] = str[i] | 32;
+		else
+			inside_word = 0;
+	}
+	return (str);
+}
+
+/* ////
+#include <stdio.h>
+
+int	main(void)
+{
+	char	s1[] = "hallo mein name ist timo und das ist ein 13371G3R TEXT hier";
+	char	*s2;
+	s2 = ft_strcapitalize(s1);
+	printf("%s\n", s2);
+	return (0);
+}
+*/ ////