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Cocoa Packet Analyzer is a native Mac OS X implementation of a network protocol analyzer and packet sniffer. It uses the industry-standard PCAP packet capture format for reading, capturing and writing packet trace files.

Supports the Cocoa bundles technology for creating TCP/IP application layer protocol "Analyzer PlugIns". Features a quicklook plugin.

What's New

Version 1.30:
  • OS X 10.9 compatibility fixes.
  • ICMPv6 Router Advertisement bug fixed.

Requirements

OS X 10.5 or later

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Cocoa Packet Analyzer User Discussion

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ylluminate Member IconComment+283
ylluminate
+4

Have you considered integrating dtrace scripts into your data gathering process with this tool? soconnect_mac.d is exceptionally useful and there are some others enumerated at: http://dtrace.org/blogs/brendan/2011/10/10/top-10-dtrace-scripts-for-mac-os-x/

I find the usefulness of these to be quite extreme in debugging and finding information that does not usually lend itself readily, even through normal packet analyzation.

A number of useful scripts from the DTrace Book can be found at: http://www.dtracebook.com/images/dtbook_scripts.tar.gz

Reply0 replies
Version 1.20
Lisa2mac Member IconReview+4
Lisa2mac
+4

Works well, and a useful tool to have at hand. I also use WireShark, but for quick packet captures, I prefer CPA. I very much appreciate developers who put out utilities like this without charging--value that can't be beat.

Reply0 replies
Version 1.12.1
AnneMARK Member IconReview-6
AnneMARK
+0

What are the industrial co-operations use your software??

Reply0 replies
Version 1.12
maddler Member IconReview+2
maddler
+0

Pretty nice application but cannot find any capturing interface on a MBP with Lion. Any clue? Am I missing anything?

Reply4 replies
Version 0.73
maddler
+0

Q: shouldn'it be asking about admin privileges when clicking on "scan"?

(developer)
+1

My fault I mixed up the configs and its running sandboxed. Will fix this fast and release 0.74 in a few. Sorry!

(developer)
+1

Sandbox also did break automatic update so please download 0.74 manually:

http://www.tastycocoabytes.com/_downloads/CPA_074.dmg

maddler
+0

Yes. It's working fine now! THX

Cainer Member IconReview+74
Cainer
+2

Nice! Not as feature complete as WireShark, but it sure beats firing up X11 if you need to sniff some packets! :)

If the missing WireShark features could be added (follow conversation, protocol hierarchy, etc etc), I'd never fire up WireShark again.

Reply0 replies
Version 0.70
Bezierboy Member IconComment+97
Bezierboy
+1

Download site overwhelmed? Try http://bit.ly/crMYgS

This is from that "other" Mac software update site, not the developer at http://www.tastycocoabytes.com/cpa/

Someone else needs to mirror this.

Reply0 replies
Version 0.69
Tijej Member IconReview+29
Tijej
+3

Awesome. Works like a charm. Easy and clean. And MacOS native.

I really prefer this over the WireShark distribution, which requires X11 and has a pretty bad GUI.

For my needs, CocoaPacketAnalyzer is the best choice.

Reply0 replies
Version 0.69
iwamoto Member IconComment+0
iwamoto
+0

Awesome, new version works a lot smoother, would freeze up with only 100 packets captured, now it can handle a thousand and decode in a second, awesome work !

Reply0 replies
Version 0.58
mswfujowdffyc Member IconReview+0
mswfujowdffyc
+4

Nice to have a FREE, recently developed Cocoa packet sniffer for OS X. It's quite usable, and useful. One might think that because it has "Cocoa" in the name, that it must be a UI masterpiece; it's not. The "New Capture" dialog box has a stop and start button, neither of which are labeled. You have to rest your mouse over them and wait for a tooltip to appear to know what's what. Some features I would like to see added are 1.) the ability to search for text inside of packet payload and 2.) the ability to select ONLY hex or ONLY text in the packet contents pane. Anyway... Cocoa Packet Analyzer is off to a nice start. I'm thankful to the developers and I'm looking forward to its future improvements.

Reply0 replies
Version 0.47
Philipz Member IconReview+7
Philipz
+1

Very nice application. Doesn't have as much features as Wireshark or any others, but is

Reply5 replies
Version 0.44
Roro01
+0

How can anybody give five stars to a beta application? Just thank the developer for thinking of us and be patient. Hopefully the time will come for a five star rating.

Philipz (developer)
+2

Not sure if I understand your comment. So you can only give good ratings if it is a non-beta, no matter how good/reliable it is?

hced
+1

If MacUpdate provides a voting function during applications' beta stages, then of course the users should able to post their review scores, should they feel for it.

Ratings during an app's beta stage, should reflect the reviewer's experience with that app, at that particular moment in time. If an app is good, it's good. I don't necessarily think it stinks just because it's in a beta stage. Mind you, some developers tend to keep their apps in beta stage for very long, sometimes even if it's to be considered final. If that's the scenario with an app that I like, then I usually won't hesitate from giving it the rating I think it deserves.

Roro01
+0

Five stars are for perfect applications whatever they are. Normally beta applications are not perfect by definition.

Peter da Silva (developer)
+0

Why would a TCPDump (or rather libpcap) GUI "not be a real sniffer"?

user icon+0
Gue
Version 1.30
user icon+0
Mac-Application
Version 1.21
user icon+0
richardspitzer7738
Version 1.21
user icon-1
ProjectBuilders
Version 1.21
user icon+2
Jensf
Version 1.11
user icon+1
Blvr
Version 0.72
user icon-1
ProjectBuilders
Version 0.70
> 4 14

Ratings

Overall
(14)
Current Version (1.x)
(7)

Details

Downloads 58,712
Version Downloads 1,854
License Free
Date 10 Apr 2014
Platform Intel 64 / OS X / Intel 32
Price Free
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