diff --git a/block_class.routing.yml b/block_class.routing.yml
index 6e90387..0f33b5f 100644
--- a/block_class.routing.yml
+++ b/block_class.routing.yml
@@ -45,6 +45,14 @@ block_class.class_list:
   requirements:
     _permission: 'administer block classes'
 
+block_class.attribute_list:
+  path: '/admin/config/content/block-class/attribute-list'
+  defaults:
+    _controller: '\Drupal\block_class\Controller\BlockClassController::attributeList'
+    _title: 'Attribute List'
+  requirements:
+    _permission: 'administer block classes'
+
 block_class.list:
   path: '/admin/config/content/block-class/list'
   defaults:
diff --git a/src/Controller/BlockClassController.php b/src/Controller/BlockClassController.php
index 84bd41c..6c6a0a9 100644
--- a/src/Controller/BlockClassController.php
+++ b/src/Controller/BlockClassController.php
@@ -294,6 +294,55 @@ class BlockClassController extends ControllerBase {
 
   }
 
+  /**
+   * Method to show the attribute list.
+   */
+  public function attributeList() {
+
+    $table = '<table>';
+    $table .= '<thead>';
+    $table .= '<tr>';
+    $table .= '<th>' . $this->t('Attributes') . '</th>';
+    $table .= '</tr>';
+    $table .= '</thead>';
+    $table .= '<tbody>';
+
+    $attributes_inline = [];
+
+    $config = $this->configFactory->getEditable('block_class.settings');
+
+    // Get config object.
+    if (!empty($config->get('attributes_inline'))) {
+      $attributes_inline = $config->get('attributes_inline');
+    }
+
+    // Get the array.
+    $attributes_inline = Json::decode($attributes_inline);
+
+    // Get the array values and id in the keys.
+    $attributes_inline = array_values($attributes_inline);
+
+    foreach ($attributes_inline as $attribute_inline) {
+
+      $table .= '<tr>';
+      $table .= '<td>' . $attribute_inline . '</td>';
+      $table .= '</tr>';
+
+    }
+
+    $table .= '</tbody>';
+    $table .= '</table>';
+
+    $markup = $table;
+
+    $build = [
+      '#markup' => $markup,
+    ];
+
+    return $build;
+
+  }
+
   /**
    * Handle Auto Complete.
    *