InSSIDer
Wi-Fi network scanner application
From Wikipedia, the free encyclopedia
inSSIDer is a Wi-Fi network scanner application for Microsoft Windows and OS X developed by MetaGeek, LLC.[3] It has received awards such as a 2008 Infoworld Bossie Award for "Best of Open Source Software in Networking",[4] but as of inSSIDer 3, it is no longer open-source.
DevelopersMetaGeek, LLC
Stable release
5.6.1
/ January 2026
Written inC
Operating systemMicrosoft Windows 7 or higher, OS X Snow Leopard or higher (via Mac App Store)
| inSSIDer | |
|---|---|
 | |
| Developers | MetaGeek, LLC |
| Stable release | 5.6.1
/ January 2026 |
| 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 [1] 3.x: Proprietary 2.x: Apache License[2] |
| Website | www |
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