I am looking for a packet sniffer / inspector which runs natively on OS X (Cocoa) and not with some sort of compatibility layer like X.

Ideally I am looking for an application with the following qualities:

  • native (Cocoa) interface
  • ability to inspect packet data
  • inspect packet data as XML, or RAW formats
  • free
  • 1
    "Decent" is fairly subjective; are there specific features you require of your packet sniffing program?
    – Ian C.
    Jun 13, 2011 at 22:28
  • why you didn't use wireshark on mac?
    – Am1rr3zA
    Jun 13, 2011 at 22:52
  • @Am1rr3zA: because its not native. I have updated my question to be more specific btw. Jun 14, 2011 at 6:40
  • try tcpdump. :) 1. Free (already in you Mac), has native Cocoa (read Terminal.app) interface :), can inspect packet data and really VERY robust, can filter by any criteria, can save packet data, etc. man tcpdump.
    – clt60
    Jun 14, 2011 at 7:48
  • @jm666: Sounds good, will give it a shot. Very cheeky regarding Terminal.app as a cocoa app :p lol Jun 14, 2011 at 22:32

1 Answer 1


Packet Peeper is a free, native OS X application for packet sniffing. Not quite as robust as Wireshark (but what is really).

There's also Cocoa Packet Analyzer, which appears to have a nifty plugin framework for extending its capabilities, but I've never used it. It's donation-ware.

KisMAC may also be of interest. Not so much a sniffer as a wireless stumbling tool. I've used it successfully to tune my wireless network in a congested neighbourhood.

Edit: based on your updated desired features I'd say try Packet Peeper. It fulfills both your requirements.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .