NirSoft.Net
Wireless Network Watcher
FreeLightweight tool for monitoring devices
Windows
ShellExView
FreeView and manage Windows shell extensions
Windows
RunAsDate
FreePrecise time control without system changes
Windows
NirLauncher
FreeSIN CONTENIDO
Windows
USBDeview
FreeManage and view USB devices on your PC
Windows
BlueScreenView
FreeEfficient Tool for Analyzing Blue Screen Errors
Windows
HashMyFiles
FreeHashMyFiles: Quick checksums, but the UI is ancient
Windows
Volumouse Portable
FreeEffortless volume control at your fingertips
Windows
AdvancedRun
FreeAdvancedRun: Customized App Launcher for Windows
Windows
BatteryInfoView
FreeLightweight Battery Tracker for Windows Devices
Windows
USBDriveLog
FreeUSBDriveLog: Surprisingly useful, if you're still on Windows 10
Windows
ControlMyMonitor
FreeSIN CONTENIDO
Windows
BlueScreenView Portable
FreeShow information about blue screen crashes occurred in your system.
Windows
Wifi Collector
FreeComprehensive Overview of Wifi Collector for Android
Android
BrowsingHistoryView
FreeBrowsingHistoryView: Only try it if you're desperate
Windows
FileTypesMan
FreeManage and Modify Windows File Types Easily
Windows
HTTPNetworkSniffer
FreeHTTPNetworkSniffer: Deep web traffic analysis, if you dare
Windows
WhoIsConnectedSniffer
FreeSimple network scanner does one thing, does it free.
Windows
HTTPNetworkSniffer
FreeHTTPNetworkSniffer: A deep dive into web traffic analysis
Windows
TCPConnectProblemView
FreeA decent, free tool for diagnosing TCP connection issues
Windows
PropertySystemView
FreePropertySystemView: Untested and Probably Unnecessary
Windows
SkypeLogView
FreeSkypeLogView: Because you might need to archive those calls
Windows
ShortcutsMan
FreeEfficient Shortcut Management with ShortcutsMan
Windows
NetworkOpenedFiles
FreeSee who's snooping: Simple network file monitor
Windows