High Quality Content by WIKIPEDIA articles! Core FTP is a secure FTP client for Windows, developed by CoreFTP.com. Features include FTP, SSL/TLS, SFTP via SSH, and HTTP/HTTPS support. Secure FTP clients encrypt account information and data transferred across the internet, protecting data from being seen or sniffed across networks. Core FTP is a traditional FTP client with local files displayed on the left, remote files on the right.