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Metageek inSSIDer logo.jpg
Inssider update.png
inSSIDer 3 running on Windows 7
Developer(s) MetaGeek, LLC
Stable release 4.1.0 / January 22, 2015 (2015-01-22)
Development status Current
Written in C
Operating system

3.0 Microsoft Windows Vista or higher, OS X Snow Leopard or higher (via Mac App Store)

2.1 Microsoft Windows XP
Platform .NET Framework
Size 5.5 MB (.msi)
Available in English (US)
Type Wi-Fi network analyzer
License 3.x Proprietary
older Apache License, Version 2.0[1]
Website InSSIDer

inSSIDer is a Wi-Fi network scanner application for Microsoft Windows and Apple OS X developed by MetaGeek, LLC.[2] It has received awards such as a 2008 Infoworld Bossie Award for "Best of Open Source Software in Networking". but it is no longer free from version 3.[3]


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.


  • 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
  • GPS support
  • Export to Netstumbler (.ns1) files
  • KML logging

Version 3.0[edit]

Version improvements:

  • Allows "starring" of networks
  • Introduces "Link Score" and "Max Rate"
  • Revamped filtering capabilities

Version 3.0 changes:

  • No longer open source
  • No free version
  • Home edition for non-commercial use
  • Office edition for commercial use

Version 2.0[edit]

Version 2.0 is a complete re-write of inSSIDer, featuring the following new features:

  • A new more stable codebase
  • A news tab to replace the ad
  • More stable GPX and KML logging
  • New Time Graph
    • Stale access points fade out over time
  • Graphs are now in tabs
    • Separate graphs for 2.4 and 5 GHz channels
  • A filtering system that allows you to only show networks that meet certain criteria
    • Great for hunting down hotspots
  • A GPS status tab
    • Shows detailed GPS data (like location, speed, altitude, etc.)
    • Also shows signal levels of satellites in view (up to 12)
  • Fullscreen mode
  • Mini mode
    • Mini mode is designed for extremely small screens that may otherwise feel cramped with the full interface
    • All points of data are in tabs
    • Default reduced number of columns visible in data grid
    • 5 GHz channel view is broken into 2 graphs for lower (33-64) and upper (100-165) channels
    • Switching between full and mini mode preserves scan data and scan state
      • You can be scanning in Full mode and switch to mini to keep scanning without interruption
  • Better paring of 802.11n data
    • Shows actual extended data rate
    • Channel graphs show 40 MHz secondary channel, if any

Stable Releases for Windows[edit]

  • (January 19, 2015)
  • (December ??, 2013)
  • (December 18, 2013)
  • (June 13, 2013)
  • (May 20, 2013)
  • (March 22, 2013)
  • Beta (March 7, 2013)
  • Beta (February 2013)
  • (October 25, 2012)
  • (June 26, 2012)
  • (June 1, 2012)
  • (February 28, 2012)
  • (January 30, 2012)
  • (February 1, 2011)
  • (December 4, 2010)
  • (October 20, 2009)

System requirements[edit]


OS X[edit]


  1. ^
  2. ^ Henry, Alan (November 18, 2008). "InSSIDer: A Wi-Fi Network Scanner for Today's Wardriver". Archived from the original on 2013-04-22. Retrieved 2013-04-22. 
  3. ^ IDG’s "InfoWorld Names the Winners of the Best of Open Source Software for 2008" (press release). August 4, 2008.

External links[edit]