InSSIDer

inSSIDer is a Wi-Fi network scanner application for Microsoft Windows and OS X developed by MetaGeek, LLC.^[4] It has received awards such as a 2008 Infoworld Bossie Award for "Best of Open Source Software in Networking",^[5] but as of inSSIDer 3, it is no longer open-source.

inSSIDer

Developer(s)	MetaGeek, LLC
Stable release	5.5.0 / September 28, 2021; 3 years ago (2021-09-28)[1]
Written in	C
Operating system	Microsoft Windows 7 or higher, OS X Snow Leopard or higher (via Mac App Store)
Platform	.NET Framework
Size	5.5 MB (.msi)
Available in	English (US)
Type	WiFi network analyzer
License	4.x: Shareware [2] 3.x: Proprietary 2.x: Apache License[3]
Website	www.metageek.com/products/inssider/

History

inSSIDer began as a replacement for NetStumbler, a popular Windows Wi-Fi scanner, which had not been actively developed for several years and reputedly did not work with modern 64-bit operating systems or versions of Windows higher than Windows XP. The project was inspired by Charles Putney on The Code Project.

Features

• New in Version 5.0: channel utilization break down to show device (AP and client) airtime utilization; see connected client devices and info about client such as utilization and signal strength
• Gathers information from wireless card and software
• Helps choose the best wireless channel available
• Wi-Fi network information such as SSID, MAC, vendor, data rate, signal strength, and security
• Graphs signal strength over time
• Shows which Wi-Fi network channels overlap

System requirements

Windows

• Version 5.0: Microsoft Windows 7 or higher
• Version 3.0: Microsoft Windows XP SP3 or higher
• Version 2.1: Microsoft Windows XP SP2
• Microsoft .NET Framework 3.5 or higher

OS X

• OS X Mountain Lion 10.8 or higher