diff --git a/src/Str.php b/src/Str.php
index 4961ea5..576fa47 100644
--- a/src/Str.php
+++ b/src/Str.php
@@ -622,4 +622,15 @@ public static function cleanWhitespace(string $str, string $charlist = " \t\n\r\
     {
         return trim(preg_replace('/[\t\n\r\s]+/', ' ', $str), $charlist);
     }
+    
+    /**
+     * Tests a string as a Regular Expression (regex)
+     * @return bool true if valid.
+     */
+    public static function isValidRegex(string $regex): bool
+    {
+        @preg_match($regex, '');
+
+        return preg_last_error() === PREG_NO_ERROR;
+    }
 }