If you download Acrylic v2, then you can't).Ģ. Download and install Acrylic WiFi Free, including Monitor Mode support (and, actually, if you can find an old download of Acrylic v1, then you'll be able to save captured frames in a *.pcap file, just like you can in Mac OS X Wireless Diagnostics. It's not quite as simple and it's not totally free, but it works (pretty much).ġ. Now, we can do similar things in Windows. Head down to the bottom of this post for a reminder. it works! It sniffs WiFi frames (sort of) and it does it for free (outside of the cost of an ordinary 802.11 USB adapter)! This changes everything (kind of)!įor years, the method for free WiFi sniffing on a Mac has been simple. I briefly checked out the app and dismissed it as yet another Discovery utility disguised as a something more.

In the comments section (perhaps the only worse thing for a blogger to say), someone mentioned a free, Windows-based application called Acrylic WiFi. Nine months ago (bad way to start a blog post, I know) I wrote a blog about the future of WiFi sniffing.

Acrylic wifi free