CrushFTP is a file transfer server designed to establish secure connections with users. Its name originates from the built-in compression methods that allow downloading files in compressed format in-stream or automatically expanding zip files as they are received, a technology called ZipStreaming. Administration is performed entirely from a web browser, enabling management and monitoring of the server from any location or device. The system detects common hacking attempts and robots scanning for weak passwords, automatically banning those IP addresses to maintain server security. User management includes inheritance, groups, and virtual file systems, simplifying the delegation of account administration.