Short description of Rad FTP 1.50: Rad FTP is a graphical File Tansfer Program Written in pure java. It is multi-threaded and therefor capable of carrying out several concurrent uploads or downloads. The free version of Rad FTP is not restricted in any way and it never expires.
Both active and passive mode transfers are supported and Rad FTP is capable of dynamically switching between these modes.
Since the program is written in pure java it is cross platform.