From Industrial Software Management:
With Rex FTP, you can edit files directly on your server, using an editing application of your choice. The days when the download, edit, save and upload operations wasted your time are gone. Just save changes in an editor of your choice and press "Update FTP" button. It features simple intuitive user interface helps you manage files interactively, edit HTML and text, right on the server, support for drag-and-drop functionality, multiple FTP server profiles, unlimited simultaneous threads for downloading/uploading, upload and download all file types.