Freeware Network Auditor

NetWorx Portable is a simple and free, yet powerful utility for measuring your bandwidth usage and speed of all kinds of wired and wireless network connections (dialup, Ethernet, ISDN, DSL, wireless)..
Download NetWorx Portable 7.3.0 (from Network Auditing)

4 MB | For Windows 7, Windows 8 / Vista / XP | Free

Glasswire is an interesting mix of firewall control and bandwidth management that can give users an idea of what programs are sending data to online servers. A review of GlassWire has also been published.
Download GlassWire 3.5.821 (from Network Auditing)

18.4 MB | For Windows 7, Windows 8 / Vista / XP | Free

SoftPerfect Network Scanner analyzes and produces detailed reports for all systems connected to your same local network between the IP address ranges that you specify, showing IP, MAC Management Health and the speed of response to ping, in addition to controlling the ports TCP and SNMP services. A review of SoftPerfect Network Scanner has also been published.
Download SoftPerfect Network Scanner 8.2.4 (from Network Auditing)

1.92 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XP | Free

If you're seeking a comprehensive solution to monitor and assess the activity within your network, look no further than Angry IP Scanner. A review of Angry IP Scanner has also been published.
Download Angry IP Scanner 3.9.1 (from Network Auditing)

1.2 MB | For Windows 7, Windows 8 / Vista / XP | Free

Advanced Port Scanner is a free tool with the main function of finding open ports on computers inside of a network. A review of Advanced Port Scanner has also been published.
Download Advanced Port Scanner 2.5.3869 (from Network Auditing)

19.5 MB | For Windows 7, Windows 8 / Vista / XP | Free

EasyNetMonitor is a small network information tool which resides in the system tray. A review of EasyNetMonitor has also been published.
Download EasyNetMonitor 4.0.1.5 (from Network Auditing)

217 KB | For Windows 7, Windows 8 / Vista / XP | Free

LanSpy is a network security scanner, which allows getting different information about computer: Domain and NetBios names, MAC address, Server information, Domain and Domain controller information, Remote control, Time, Discs, Transports, Users, Global and local users groups, Policy settings, Shared resources, Sessions, Open files, Services, Registry and Event log information and etc..
Download LanSpy 2.0.1 (from Network Auditing)

1.06 MB | For Windows 7, Windows 8 / Vista / XP | Free

RawCap is a free command line network sniffer for Windows that uses raw sockets..
Download RawCap 0.2.1.0 (from Network Auditing)

53 KB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XP | Free

NetMeter is a small, customizable network usage monitoring program..
Download NetMeter EVO 2.0.0 (from Network Auditing)

491.6 KB | For Windows 7, Windows 8 / Vista / XP | Free

MiTeC Network Scanner is a free multi-threaded ICMP, Port, IP, NetBIOS, ActiveDirectory and SNMP scanner with many advanced features..
Download MiTeC Network Scanner 6.0.1.0 (from Network Auditing)

2.9 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XP | Free