diff --git a/ft_isalpha.c b/ft_isalpha.c
new file mode 100644
index 0000000..01b33d0
--- /dev/null
+++ b/ft_isalpha.c
@@ -0,0 +1,19 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_isalpha.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/14 14:03:32 by kcolin            #+#    #+#             */
+/*   Updated: 2024/10/14 14:27:11 by kcolin           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	ft_isalpha(int c)
+{
+	if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'))
+		return (1);
+	else
+		return (0);
+}