NetSpot - NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
Vistumbler - Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:
NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
Kismet - Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
VueScan - Third-party software for film scanners and flatbed scanners.