PS3FTP is a lightweight FTP server application created for the PlayStation 3. Unlike earlier FTP applications compiled using Sony’s leaked SDK, this version is compiled using AerialX’s PSL1GHT Open SDK, making it 100% legal to use. While the app doesn’t have a GUI yet and will show a black screen while running, it still functions perfectly. If you don’t know your PS3’s IP address, you can check your router to find it.
