diff --git a/inactive-tab-title-changer.php b/inactive-tab-title-changer.php
new file mode 100644
index 0000000..91483ee
--- /dev/null
+++ b/inactive-tab-title-changer.php
@@ -0,0 +1,64 @@
+<?php
+/**
+ * Plugin Name: Inactive Tab Title Changer
+ * Description: Changes the browser tab's title when the tab is inactive.
+ * Version: 1.0
+ * Author: Christoph Lindhauer, f5.design
+ * Author URI: https://f5.design
+ * License: GPL2
+ * Text Domain: inactive-tab-title-changer
+ */
+
+defined('ABSPATH') or die('No script kiddies please!');
+
+function ittc_enqueue_scripts() {
+    wp_enqueue_script('ittc-main-js', plugins_url('js/main.js', __FILE__), array('jquery'), '1.0.0', true);
+
+    $data = array(
+        'inactiveTitle' => get_option('ittc_inactive_title', 'Please come back!'),
+        'timeout' => get_option('ittc_timeout', 5000)
+    );
+    wp_localize_script('ittc-main-js', 'ittcData', $data);
+}
+add_action('wp_enqueue_scripts', 'ittc_enqueue_scripts');
+
+function ittc_register_settings() {
+    add_option('ittc_inactive_title', 'Please come back!');
+    add_option('ittc_timeout', '5000');
+    register_setting('ittc_options_group', 'ittc_inactive_title', 'strval');
+    register_setting('ittc_options_group', 'ittc_timeout', 'intval');
+}
+add_action('admin_init', 'ittc_register_settings');
+
+function ittc_register_options_page() {
+    add_options_page('Inactive Tab Title Changer', 'Inactive Tab Title Changer', 'manage_options', 'ittc', 'ittc_options_page');
+}
+add_action('admin_menu', 'ittc_register_options_page');
+
+function ittc_options_page() {
+    ?>
+    <div class="wrap">
+        <h2>Inactive Tab Title Changer</h2>
+        <form method="post" action="options.php">
+            <?php settings_fields('ittc_options_group'); ?>
+            <table class="form-table">
+                <tr valign="top">
+                    <th scope="row"><label for="ittc_inactive_title"><?php _e('Inactive Tab Title', 'inactive-tab-title-changer'); ?></label></th>
+                    <td><input type="text" id="ittc_inactive_title" name="ittc_inactive_title" value="<?php echo get_option('ittc_inactive_title'); ?>" /></td>
+                </tr>
+                <tr valign="top">
+                    <th scope="row"><label for="ittc_timeout"><?php _e('Timeout (ms)', 'inactive-tab-title-changer'); ?></label></th>
+                    <td><input type="number" id="ittc_timeout" name="ittc_timeout" value="<?php echo get_option('ittc_timeout'); ?>" /></td>
+                </tr>
+            </table>
+            <?php submit_button(); ?>
+        </form>
+    </div>
+    <?php
+}
+
+function ittc_load_textdomain() {
+    load_plugin_textdomain('inactive-tab-title-changer', false, basename(dirname(__FILE__)) . '/languages');
+}
+add_action('plugins_loaded', 'ittc_load_textdomain');
+?>
diff --git a/main.js b/main.js
new file mode 100644
index 0000000..610bc96
--- /dev/null
+++ b/main.js
@@ -0,0 +1,14 @@
+let timer;
+
+document.addEventListener('visibilitychange', function() {
+    clearTimeout(timer); // Vorhandenen Timer löschen, wenn der Tab-Status geändert wird
+
+    if (document.hidden) {
+        timer = setTimeout(function() {
+            document.originalTitle = document.title; 
+            document.title = ittcData.inactiveTitle;
+        }, ittcData.timeout);
+    } else {
+        document.title = document.originalTitle || document.title; // Setze den Titel zurück, falls ein originalTitle vorhanden ist
+    }
+});
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