inSSIDer is a free Wi-Fi network scanner for Windows Vista and windows XP. Because NetStumbler doesn't work well with Windows Vista and 64-bit Windows XP, we decided to build an open-source Wi-Fi network scanner designed for the current generation of Windows operating systems. About a year later, inSSIDer was given great reviews on Lifehacker and discussed on Tekzilla.
Benefits
- Inspect your WLAN and surrounding networks to troubleshoot competing access points.
- Use Windows Vista and Windows XP 64-bit.
- Uses the Native Wi-Fi API.
- Track the strength of received signal in dBm over time.
- Filter access points in an easy to use format.
- Highlight access points for areas with high Wi-Fi concentration.
- Group by Mac Adress, SSID, Channel, RSSI, and time "last seen."
Open Source
InSSIDer is licensed under the Apache License, Version 2.0. The source code is freely available from our public Subversion repository at http://www.metageek.net/svn/trunk. If you would like to contribute changes to InSSIDer please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
This project was started by Charles Putney on The Code Project. Norman Rasmussen modified the project to use the Managed Wi-Fi C# wrapper for the Native Wi-Fi API. Many thanks to Charles and Norman, as well as the Managed Wi-Fi team for getting this project off the ground.
Trying to Identify Interference?
There may be more than other Wi-Fi networks wreaking havoc on your WLAN. Our Wi-Spy products are great at diagnosing interference from Wi-Fi and non Wi-Fi devices, including the following:
Microwaves- Cordless Phones
- Wireless Video Cameras
- Wireless Headsets
- Zigbee
- Bluetooth
You can read more about wireless interference and how a Wi-Spy can help you.