diff --git a/includes/str.h b/includes/str.h
index f22cda1..07b4600 100644
--- a/includes/str.h
+++ b/includes/str.h
@@ -6,7 +6,7 @@
 /*   By: rparodi <rparodi@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/10/31 15:04:59 by rparodi           #+#    #+#             */
-/*   Updated: 2025/09/01 17:56:24 by rparodi          ###   ########.fr       */
+/*   Updated: 2025/09/01 18:47:05 by rparodi          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -21,6 +21,7 @@ char	*ft_strcpy(char *dst, const char *src);
 char	*ft_strdup(const char *s);
 char	*ft_strjoin(char const *s1, char const *s2);
 char	*ft_strmapi(char const *s, char (*f)(unsigned int, char));
+char	*ft_strncpy(char *dst, const char *src, size_t size);
 char	*ft_strnstr(const char *big, const char *little, size_t len);
 char	*ft_strrchr(const char *s, int c);
 char	*ft_strtrim(char const *s1, char const *set);
diff --git a/str/ft_strncpy.c b/str/ft_strncpy.c
new file mode 100644
index 0000000..d8db173
--- /dev/null
+++ b/str/ft_strncpy.c
@@ -0,0 +1,36 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strncpy.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: rparodi <rparodi@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/31 16:14:10 by rparodi           #+#    #+#             */
+/*   Updated: 2025/09/01 18:46:55 by rparodi          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stddef.h>
+
+/**
+ * @brief Copies a string.
+ * 
+ * @param dst The destination buffer.
+ * @param src The source string.
+ * @param size The size to copy
+ * 
+ * @return A pointer to `dst`.
+ */
+char	*ft_strcpy(char *dst, const char *src, size_t size)
+{
+	size_t	i;
+
+	i = 0;
+	while (src[i] || i < size)
+	{
+		dst[i] = src[i];
+		i++;
+	}
+	dst[i] = '\0';
+	return (dst);
+}