PCMan is described as 'open source software for BBS viewing'. There are seven alternatives to PCMan for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and Android. The best alternative is PuTTY, which is both free and Open Source. Other great apps like PCMan are Royal TSX (Freemium), Shellngn (Freemium), Truck (Paid) and Putty for Mac (Paid).
PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port.
Still using FTP? Truck hauls data 30x faster thanks to its modern rsync engine (included) which compresses, de-duplicates and encrypts – giving significantly higher performance and security, right from the first transfer.
Putty is one of the Best Terminal Emulators available today. It Supports different types of Network Protocols such as SSH, FTP, SCP, Telnet etc. In Windows it is used as SSH Client to connect to Your Linux server or for some other purpose.
PieTTY is a free SSH client based on PuTTY and dedicated to multilingual (especially CJK) environments, accessibility, and simpler user interface. "Glass Window Mode" : Alpha-blending / HW-accelerated transparency & drop-shadow.