packet sniffer freeware
MacSniffer 1.0b1
MacSniffer allows you to view all of the traffic on a network connection more>>
MacSniffer includes a filter editing interface and a filter library to easily construct and reuse packet filters to view a subset of all the traffic on the connection, such as just that destined for a specific host or port.
You can choose the level of detail you want captured, from just the minimal packet headers (showing source and destination hosts and ports) up to a full hex and ASCII dump of the packet contents.
MacSniffer can be useful for diagnosing many network problems, debugging client/server programs, and scanning for particular network exploits in real time.

Cocoa Packet Analyzer 0.65
Cocoa Packet Analyzer is developed to be a useful native Mac OS X implementation of a network protocol analyzer and packet sniffer, which supports the industry-standard PCAP packet capture format for reading, capturing and writing packet trace files. more>>
Cocoa Packet Analyzer 0.65 is developed to be a useful native Mac OS X implementation of a network protocol analyzer and packet sniffer, which supports the industry-standard PCAP packet capture format for reading, capturing and writing packet trace files.
Major Features:
- Basic packet capturing (libPCAP/ tcpdump filter expressions can be used).
- Analyze and display packet trace files.
- Supports PCAP packet capture format.
- Quicklook plugin included - its basic but at least you can get an overview over packet trace files in finder.
Supported Types and Protocols:
- Ethertype ARP
- Ethertype IP (v4/ v6)
- Ethertype PPP
- Ethertype PPPoED/S
- Ethertype 802.1Q VLAN
- Linktype Loopback
- Linktype PPP
- IP-Protocol IP
- IP-Protocol TCP
- IP-Protocol UDP
- IP-Protocol ICMP
- IP-Protocol IGMP
- IP-Protocol L2TP
- PPPoE Discovery and Sessionstages
- PPP-Protocols: IP, LCP, IPCP, CCP, PAP, CHAP
- L2TP-Protocol (port based detection)
- RADIUS-Protocol (port based detection)
- SIP-Protocol (third party analyzer plugin)
Enhancements:
- added an option to save find queries.
- fixed some small memory leaks.
- optimized document types.
native Mac OS X implementation of a network protocol analyzer and packet sniffer. Cocoa Packet ... protocol analyzer and packet sniffer. CPA supports the industry-standard PCAP packetLicense:Freeware
License:Freeware
OS X implementation of a network protocol analyzer and packet sniffer. Cocoa Packet Analyzer 0 ... of a network protocol analyzer and packet sniffer. CPA supports the industry-standard PCAPLicense:Freeware
Jens Francke - Network protocol analyzer and packet sniffer. Cocoa ... Cocoa Packet Analyzer 0.61 comes as a network protocol analyzer and packet sniffer for Mac OS XLicense:Freeware

Packet Peeper 17.8.2008
Packet Peeper offers you a comprehensive network protocol analyzer (or packet sniffer), its features include TCP stream reassembly, privilege separation, simultaneous capture sessions, filters, Python plugins, and support for pcap capture files. more>> Packet Peeper 17.8.200 offers you a comprehensive network protocol analyzer (or "packet sniffer"), its features include TCP stream reassembly, privilege separation, simultaneous capture sessions, filters, Python plugins, and support for pcap capture files.
Requirements: Mac OS X 10.4 or later.
Packtory 1
Packtory - Command line packet construction tool more>>
Equipped with a packet database manager and a checksum calculator, Packtory is a must have for any computer geek.
Justniffer 0.5.2
Free and open source TCP packet sniffer more>> Free and open source TCP packet sniffer
Justniffer captures TCP packets, reassembles and reorders them, performs IP packet defragmentation and displays the tcp flow in the standard output.
Justniffer is useful for logging network traffic in a standard (web server like) or in a customized way.
Justniffer can log timings, for example it can log the response time). It is very useful for tracking network services performances (e.g. application server, web server, etc.).
The main differences with other sniffers are:
- Justniffer captures tcp/ip traffic and handle all tcp/ip stuff (reordering, retrasmissions, defragmentation). The tcp flow adjustment is performed using linux kernel code included in a slightly modified version of the nids library.
- Justniffer reports timing informations. So it can be usefull for tracking network system performances
Enhancements
- fixed compilation issues with gcc 3.3.3
- added connection.timestamp
- fixed idle.time.0 formatting
- fixed documentation
- more adherence to RFC 2616: looking for headers in case insesitive mode
- new HTTP headers added

AirGrab Network Packet Analyzer 0.9
A professional network analyzer (also known as protocol analyzer and packet sniffer). more>>
A professional network analyzer (also known as protocol analyzer and packet sniffer), AirGrab Network Packet Analyzer performs real-time packet capturing, network monitoring, advanced protocol analyzing, in-depth packet decoding. It allows you to get a clear view of the complex network, conduct packet level analysis, and troubleshoot network problems. You can Analyze Network events, Network protocols, Packet details (packet decoding), Network conversations. No training needed, no profound background required, data are displayed in intuitive tables and graphs.
Freeware Update 1.0.3
Freeware Update allows you to check for updates of current freeware installed on your Macintosh more>>
Freeware Update works exactly as Software Update made by Apple : Downloads & Installations.
Freeware Update is able to work as a Daemon and check for updates automatically every months/weeks/days/hours.
Enhancements:
- Auto-installation for downloaded updates now works
Apple Search 1.0
Apple Search allows you to search the Apple Discussions, Downloads, Manuals and Support Site from dashboard more>>
Freeware.
Open Unread Messages 1.0
Open Unread Messages - Shortcut for opening unread messages more>>
Completly freeware.
DockItem Drawing 1.0
DockItem Drawing - Draw a custom application icon more>>
Completly freeware for non-commercial use.
Converter+ 1.6
Converter+ - Measurement units converter more>>
Completly freeware.
Enhancements:
- Bug correction
- Improvement
- Carbon,Classic and windows version.
Full Screen Safari 1.0
Full Screen Safari - View full screen Safari windows more>>
Completly freeware.
Lycos Search 1.0
Lycos Search - Search the web using the Lycos search engine more>>
Completly freeware for personal use.
Easter 1.0
Easter - Easter themed icon set more>>
Completly freeware for personal use.
Kismet 200905 RC1
Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system more>> Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system
Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
Kismet will work with any wireless card which comes with support for the raw monitoring (rfmon) mode, and can sniff 802.11a, 802.11b, and 802.11g traffic.
Kismet identifies networks by passively collecting packets and detecting standard named networks, detecting (and given time, decloaking) hidden networks, and infering the presence of nonbeaconing networks via data traffic.
Main features:
- Ethereal/Tcpdump compatible data logging
- Airsnort compatible weak-iv packet logging
- Network IP range detection
- Built-in channel hopping and multicard split channel hopping
- Hidden network SSID decloaking
- Graphical mapping of networks
- Client/Server architecture allows multiple clients to view a single
- Kismet server simultaneously
- Manufacturer and model identification of access points and clients
- Detection of known default access point configurations
- Runtime decoding of WEP packets for known networks
- Named pipe output for integration with other tools, such as a layer3 IDS like Snort
- Multiplexing of multiple simultaneous capture sources on a single Kismet instance
- Distributed remote drone sniffing
- XML output
- Over 20 supported card types
Enhancements
- This is a complete rewrite of Kismet (referred to as Kismet-Newcore while under development).
- It includes a new user interface, improved tracking, IDS functions, a plugin architecture... for both server and client, and auto-detection of drivers and supported channels on sniffing devices
