Glsof is described as 'is two separate utilities (Queries & FileMonitor) to the command line utility Lsof by Vic Abell. Both applications are written in Java. Another fundamental requirement is the command line Lsof that has to be installed on your system' and is an app in the OS & Utilities category. There are five alternatives to Glsof for Linux, Mac, BSD and Windows. The best alternative is htop, which is both free and Open Source. Other great apps like Glsof are vtop (Free, Open Source), Sysdig (Free, Open Source), Resource Monitor (Free) and lsof (Free, Open Source).
Sysdig is open source, system-level exploration: capture system state and activity from a running Linux instance, then save, filter and analyze. Think of it as strace + tcpdump + lsof + awesome sauce. With a little Lua cherry on top.
Resource Monitor is a system application in Microsoft Windows operating systems. It is used to view information about the use of hardware (CPU, memory, disk, and network) and software (file handles and modules) resources in real time.