Maybe you want to rename all files under a folder, but the files are too many to do it mannually.
The tool can help you to complete the task.
Just compress the folder to zip file and upload it, click on the button Submit. You can get a new zip file to download.
You are expected to input regular expression for match text box (old name) and new name text box for our task
For example, change file suffix:
old name expression: (.*)\.txt new name expression: $1.png
new name expression: