Bulk Rename Utility

Introduction

Bulk Rename Utility is a utility which allows you to easily rename files and directories, based upon extemely flexible criteria. Add date-stamps, replace numbers, insert strings, convert case, add auto-numbers, process folders and subfolders….plus loads more!

Official website:  http://www.bulkrenameutility.co.uk/Main_Intro.php

There is no unicode version they provide. But a Chinese group made 2 chinese version: one unicode version, one ascii version: