diff --git a/xrand/rand.go b/xrand/rand.go
index dc9d1e5..9f1682e 100644
--- a/xrand/rand.go
+++ b/xrand/rand.go
@@ -70,3 +70,13 @@ func Shuffle[T any](slice []T) {
 func RandomInt64(min, max int64) int64 {
 	return Int63n(max-min) + min
 }
+
+const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+func RandomString(n int) string {
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = letterBytes[rd.Intn(len(letterBytes))]
+	}
+	return string(b)
+}