diff --git a/src/FtpClient.php b/src/FtpClient.php
index 853555f..8f26e43 100644
--- a/src/FtpClient.php
+++ b/src/FtpClient.php
@@ -59,6 +59,16 @@ public function close() : void
         $this->conn = null;
     }
 
+    /**
+     * Returns whether a connection is currently open.
+     *
+     * @return bool
+     */
+    public function isConnected() : bool
+    {
+        return $this->conn !== null;
+    }
+
     /**
      * Logs in to the FTP connection.
      *