inSSIDer is a Wi-Fi network scanner application for Microsoft Windows and OS X developed by MetaGeek, LLC. It has received awards such as a 2008 Infoworld Bossie Award for "Best of Open Source Software in Networking", but as of inSSIDer 3, it is no longer open-source.
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 softwareHelps choose the best wireless channel availableWi-Fi network information such as SSID, MAC, vendor, data rate, signal strength, and securityGraphs signal strength over timeShows which Wi-Fi network channels overlapVersion 4 improvements:
Adds ESSID/Radio groupingColoring rules for co-channel and adjacent-channel interferenceLink icon802.11ac supportExpanded filtering capabilitiesVersion 4 changes:
No longer freeinSSIDer 4 for home/non-commercial useinSSIDer Office for commercial useVersion 3.0.6.42 improvements:
Allows "starring" of networksIntroduces "Link Score" and "Max Rate"Revamped filtering capabilitiesVersion 3.0 changes:
No longer open sourceHome edition for non-commercial useOffice edition for commercial useRemoved KML and GPS supportVersion 2.0 is a complete re-write of inSSIDer, featuring the following new features:
A new more stable codebaseA news tab to replace the adMore stable GPX and KML loggingNew Time GraphStale access points fade out over timeGraphs are now in tabsSeparate graphs for 2.4 and 5 GHz channelsA filtering system that allows you to only show networks that meet certain criteriaGreat for hunting down hotspotsA GPS status tabShows detailed GPS data (like location, speed, altitude, etc.)Also shows signal levels of satellites in view (up to 12)Fullscreen modeMini modeMini mode is designed for extremely small screens that may otherwise feel cramped with the full interfaceAll points of data are in tabsDefault reduced number of columns visible in data grid5 GHz channel view is broken into 2 graphs for lower (33-64) and upper (100-165) channelsSwitching between full and mini mode preserves scan data and scan stateYou can be scanning in Full mode and switch to mini to keep scanning without interruptionBetter paring of 802.11n dataShows actual extended data rateChannel graphs show 40 MHz secondary channel, if any4.2.0.12 (January 19, 2015)4.0.0.0 (December ??, 2013)3.1.2.1 (December 18, 2013)3.0.7.48 (June 13, 2013)3.0.6.42 (May 20, 2013)3.0.5.80 (March 22, 2013)3.0.4.37 Beta (March 7, 2013)3.0.3.53 Beta (February 2013)2.1.6.1394 (October 25, 2012)2.1.5.1393 (June 26, 2012)2.1.4.1391 (June 1, 2012)2.1.1.13 (February 28, 2012)2.1.0.1379 (January 30, 2012)2.0.7.0126 (February 1, 2011)2.0.5.1111 (December 4, 2010)1.2.3.1014 (October 20, 2009)Version 3.0: Microsoft Windows Vista or higherVersion 2.1: Microsoft Windows XP SP2Microsoft .NET Framework 3.5 or higherOS X Mountain Lion 10.8 or higher
