✳CySecTekDOWNLOAD

INSTEAD OF INSSIDER

A free Wi-Fi analyzer for Windows

For when the job is: See what is on the air, and which channel is worth using.

Windows stopped shipping anything useful for looking at Wi-Fi a long time ago, and the Microsoft Store is full of Wi-Fi analyzers of varying honesty. inSSIDer and NetSpot are the serious ones, and NetSpot in particular does heatmaps and floor-plan surveys that this does not attempt.

CySecTek covers the everyday part: what is nearby, how strong it is, what security it uses, how the channels are stacking up across 2.4, 5 and 6 GHz, and how the signal to the network you are on has behaved over the last few minutes. It reads the Windows WLAN API, so it works with the adapter already in the laptop.

What CySecTek does here

  • Nearby networks with signal, band, channel width, security and the vendor behind the BSSID.
  • Channel occupancy across 2.4, 5 and 6 GHz, including which 5 GHz channels are DFS.
  • Signal history over time, which is what tells you whether a complaint about "dropping out" is a coverage problem or something else.
  • Multiple BSSIDs under one SSID shown separately — useful when a site has a dozen APs all advertising the same name.
  • No special adapter and no monitor mode: it uses the Windows WLAN API and the card you already have.

When to keep using inSSIDer

  • Heatmaps and floor-plan surveys. If you are producing a survey report for a client, NetSpot or Ekahau is the tool.
  • Anything needing monitor mode or packet-level 802.11 analysis — the WLAN API reports what Windows knows, not raw frames.
  • Windows also throttles how often it will rescan, so the refresh rate is what the OS allows rather than continuous.

Questions

Does it need a special Wi-Fi adapter?
No. It reads the Windows WLAN API, so it works with whatever card is in the laptop.
Why does the list update slowly sometimes?
Windows rate-limits WLAN scans, and a scan briefly interrupts the connection, so the OS is conservative about them. Every tool on Windows using this API has the same limit.
Does it show 6 GHz?
Yes, if the adapter and driver support it — 6 GHz networks appear alongside 2.4 and 5 GHz with their channel and width.
Can it do a heatmap?
No. There is no floor-plan survey or heatmap; that is what NetSpot and Ekahau are for.

Free, and one download

CySecTek 0.7.0 for Windows 10 and 11, 64-bit. No account, no licence key, no paid tier. The installer's SHA-256 is published beside it so you can verify what you downloaded.

Download CySecTek

inSSIDer and other product names are trademarks of their respective owners, referenced here only to describe comparable functionality. CySecTek is not affiliated with or endorsed by them.