diff --git a/Makefile b/Makefile
index b7fa7f2..4ca31bd 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ OBJ_DIR = obj
 
 CC = cc
 
-WARNINGS = -Wall -Wextra -Werror
+WARNINGS = -Wall -Wextra -Werror -g -fsanitize=address,undefined
 
 CFLAGS = $(WARNINGS)
 
diff --git a/inc/libft.h b/inc/libft.h
index 721a114..bfa0e68 100644
--- a/inc/libft.h
+++ b/inc/libft.h
@@ -56,6 +56,7 @@ void	ft_putchar_fd(const char c, int fd);
 void	ft_putstr_fd(const char *s, int fd);
 void	ft_putendl_fd(const char *s, int fd);
 void	ft_putnbr_fd(const int n, int fd);
+void	ft_free_arr(char **arr);
 
 /*
  *  Lists
diff --git a/src/memory/ft_free_arr.c b/src/memory/ft_free_arr.c
new file mode 100644
index 0000000..a297bc1
--- /dev/null
+++ b/src/memory/ft_free_arr.c
@@ -0,0 +1,16 @@
+#include "libft.h"
+
+void ft_free_arr(char **arr)
+{
+	int i;
+
+	i = 0;
+	if (arr == NULL)
+		return ;
+	while (arr[i] != NULL)
+	{
+		free(arr[i]);
+		i++;
+	}
+	free(arr);
+}