Best sniffer software for free download

AIM Sniffer is a handy network utility to capture and log AIM (AOL Instant Messenger) chat from computers within the same LAN. It supports not only messaging through AIM server but also direct connection messaging.
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ICQ Sniffer is a handy network utility to capture and log ICQ chat from computers within the same LAN. It supports messaging through ICQ server with format of plain text, RTF, or HTML. All intercepted messages are well organized by user with buddies.
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HHD Accurate Network Monitor - ip packet sniffing, monitoring and protocol analyzer software tool that can sniff internet protocols performing tcp / ip, udp / ip communication traffic analysis. LAN connection sniffer and internet data capture utility
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MiaRec is a software for recording your conversations in any of Voip protocols (H.323, SIP, MGCP, Cisco SCCP).
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Software USB port sniffer, monitor tool with protocol analyzer and data logger. This Universal Serial Bus monitoring utility can spy, capture, view, log, analyze, test usb device activity performing connection traffic analysis with data acquisition and control. You can use this USB aquisition system as connection testing and diagnostic tool, modem data transfer viewer, packet analyser, interface tester and so on. USB Monitor can be successfully used for monitoring data flow between USB devices and Windows application, debugging port connections, developing, reverse-engineering and implementing protocol, device driver development, hardware development, research the functionality of any third-party software and hardware, testing software and hardware. USB Monitor can be successfully used by programmers, beta-testers, software developers, hardware engineers, IT support specialists, industrial control personnel, SCADA software engineers, science technicians, systems integrators, consultants, lab experts, University students.
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The Packet Analyzer pro is an advanced packet analysis and sniffing tool with powerful protocol decodes capabilities. It can capture and analyze all LAN traffic and decodes all major and frequently used protocols including TCP/IP, UDP, HTTP, HTTPS, SMTP, POP3, TELNET, FTP, etc. All information is displayed in simple English with easy to use interface for anyone to master the tool with minutes of self training. With the Packet Analyzer, you can easily filter the network traffic to focus on the information that you are looking for. Use these flexible, powerful filters during or after capture to isolate traffic by specific node, protocol, error type and/or packet content. Comprehensive network statistics allow you to unerstand network health quickly.

Packet Analyzer Key Features:
Smart Real-time packet capturing and analyzing;
Reconstructs TCP/IP sessions and enables you to see data in their original format;
Capture, display and save transaction information such as user name and password and the entire message
Capture Pop/Pop3, IMAP/IMAP4 and SMTP mails, display and save in Outlook Express Message Format;
Powerful Packets Viewer to examine data in plain English
Protocol decodes on TCP/UDP//IP suite and application protocols including POP3, SMTP, HTTP, TELNET, FTP;
Powerful filter provides a general and flexible mechanism for user to focus on useful packets;
Network statistic summary for network performance overview
Dynamically Loadable Protocol Drivers
Support multiple monitors and terminal server; Anayze both Ethernet and 802.11 wireless LAN traffic.
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Wiretap Professional is state-of-the-art, Stealth PC monitoring & surveillance software. Powerful features let you capture and record virtually everything on a PC including: all keystrokes typed, passwords entered, incoming & outgoing emails, incoming & outgoing instant messages (AIM/ICQ/MSN/Yahoo), all websites visited, all applications started & documents opened, folders browsed, and much more!

The Screen Snapshot feature allows you to record screenshots as often as you want, giving you the ability to see exactly what the user's desktop looks like at any time. All log files and screenshots can be emailed or uploaded via ftp at specified intervals to any email address or ftp site you choose for Remote Monitoring of the tapped PC.

In addition to Wiretap's monitoring & capturing functions, it also offers content filtering: restrict access to specific web site URL's, limit access to a specific list of URL's, filter applications being launched on the tapped PC by filtering Window titles, and more.

Wiretap also features two modes of operation: Stealth Mode and Normal Mode. Stealth mode takes steps to be virtually undetectable on the user's system and functions more as "Spy Software" for added security. Normal mode, suitable for corporate use, allows the Wiretap Admin to warn the user at startup that he or she is being monitored.
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Colasoft Capsa is a professional network analyzer (aka. protocol analyzer & packet sniffer) that performs real-time packet capturing, 24/7 network monitoring, advanced protocol analyzing, in-depth packet decoding, and automatic expert diagnosing. By giving you insights into all of your network's operations, Capsa makes it easy to isolate and solve network problems, identify network bottleneck and bandwidth use, and detect network vulnerabilities.

Network administrators can directly monitor http requests, email messages, DNS queries, as well as real-time activities and message details for the four most popular instant messengers: MSN, AIM, ICQ, and Yahoo Messenger.

Capsa is designed to be used by both IT professionals and novice users. Problems are clearly identified, and solutions are suggested in understandable terms. The program includes tables and graphs, as well as intuitive statistics and reports. Capsa has the tools that you would not find in other protocol analyzers, including tools to create and replay packets, and ping and scan IPs and MACs across the LAN.

What separates Capsa from other network sniffers is its unique ability to conduct quick drilldown analysis on a single workstation, protocol or packet. After locating a single item, it allows you to get comprehensive and dedicated information about that item.

Whether you're a network administrator who needs to identify, diagnose, and solve network problems quickly, an IT professional who wants to monitor user activities on the network, a security manager who needs to ensure that the corporation's communications assets are safe, or a consultant who has to quickly solve network problems for clients, Capsa has the tools that you need.

Capsa runs under Windows 2000/XP/2003/Vista. You can download a trial version of Capsa from the company's web site: http://www.colasoft.com/
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NetResident is an advanced network content monitoring program that captures, stores, analyzes, and reconstructs network events such as e-mail messages, Web pages, downloaded files and instant messages. NetResident uses advanced monitoring technology to capture the required data from the network, saves it to a database, reconstructs it, and displays this content in an easy-to-understand format.While NetResident is similar to network analyzers in many respects, it focuses on high-level protocols that are used to transfer content over the Internet or a LAN. With NetResident, you don't need a profound understanding of networking technologies, nor do you have to use complex packet capturing and analysis software or dig through network packets in order to reconstruct the actual data. NetResident does all the work for you and presents only the Web pages, e-mails, instant messages, or downloaded files as requested. NetResident is used by network administrators to enforce IT policy, by parents to monitor their children's communication on the Internet, and by forensic experts to gain crucial information. If you are one of the many network professionals who uses TamoSoft's network monitoring solutions, CommView or CommView for WiFi, NetResident will process the log files generated by your packet monitoring program and retrieve e-mail messages, Web pages, and other types of content for quick analysis.
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A HTTP protocol network sniffer, HTTP packet analyzer and file rebuilder. Unlike most other sniffers, it is dedicated to capture IP packets containing HTTP protocol, rebuild and save the HTTP communications and files sent through HTTP protocol.

It is a helpful tool for company managers, parents, LAN administrators, security professionals to supervise the web access and HTTP traffic on the LAN.

Features:
1. Capture IP packets on your LAN with nearly no packets losing.
2. Smart real-time analyzer enables on-the-fly content viewing while capturing and analyzing.
3. Parse and decode HTTP protocol.
4. Support various file type such as HTML, .gif, .jpg, and etc.
5. Rebuilt files transformed through HTTP protocol.
6. Display and save the rebuilt files.
7. Powerful filter provides a flexible mechanism to monitor specific host and file types.
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Monitor Google Talk Messenger Conversations on your LAN,query logs,export Html or excel fiel!

'IMBoss Google Talk Sniffer Monitor' is a network visibility tool to capture conversations of a Google Talk chat in your local network.
'IMBoss Google Talk Sniffer Monitor' consists of a well-integrated set of functions that can be used to records Google Talk conversations automatically when your PC starts.
'IMBoss Google Talk Sniffer Monitor' can save all logs into database for provides rich-features report and finding system .
You can export all intercepted messages to HTML files, Excel file with rich-features.
It's easy to use, and it will monitor all conversations in your "Local Area Network" without the use of client software installed on the remote computer.

Automatic You can enable the program to automatically start monitoring, at Windows startup.
Report provides rich-features report and finding system
Browse log export all intercepted messages to HTML files, Excel file by rich-features.
Privacy You can set a hotkey to hide/show the monitor window and tray Icon.
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There are many reasons why you may want to monitor your Internet traffic flows. I'll point out only a few of the most popular reasons. No anti-virus can guarantee you 100% protection from Trojan Horses and malicious spyware or adware programs. Some of them are highly customized and checking against anti-virus databases does nothing. They also slow down your Internet connection. Needless to say that identity theft or using your computer as a peer-to-peer network hub for pirated software, music and video downloads without you even knowing about this may certainly have unwanted consequences. If you share your computer with family members or you administer computers in your office, knowing the Internet traffic details becomes essential. Network load balance, security reasons and more...

Recently I've come across a wonderful utility that serves just this purpose. IP Traffic Monitor sits in your system tray and monitors all your network connections. You can either monitor the active connections in real-time or browse historical logs. The program shows extensive information about each connection: remote host IP, remote host name (if available), amounts of incoming and outgoing traffic through this connection, timestamps of the first and last activity of this connection, name of the process that initiated or accepted this connection, full path to the application the process belongs to, etc. The traffic summary indicator shows an upload and download speed graph and traffic totals. In addition it draws pie chart diagrams that illustrate the percentage of certain hosts in the total incoming and outgoing traffic.

It would be naive to expect packet sniffer functionality from a $20 utility. Yet, IP Traffic Monitor includes a full-featured sniffer. You can easily capture and analyze TCP packets. Captured packets can be saved to a log file or analyzed in place. For example, you can analyze HTTP requests including passwords and other data that is sent to servers from your PC.
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This program is designed for garbling incoming and outgoing Internet traffic and hiding your IP address. This is necessary for several reasons: so you can surf the net anonymously, and so your Internet Service Provider can't see what sites you visit. You do not want your company system administrator to intercept information you receive and send. And you do not want the copies of pages that you have visited to be stored in the cache of the corporate proxy. Nor would you like anyone using a sniffer to read your mail. And, of course, you'd like to keep your mail box password secret. And so on. Everyone who uses the Internet is interested in immunity to the various remote hacker attacks which start by identifying your IP address. Internet Traffic Garbler ensures your security.
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Chase IP monitors your network and shows country location of remote computers. Chase IP has a packet sniffer and some simple network information such as Gateway IP and your dhcp server address. Chase also shows remote ports of packets received.Shows MAC Addresse's too. This is a very informative broadband speed test.
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CommView is a program for monitoring Internet and Local Area Network (LAN) activity capable of capturing and analyzing network packets. It gathers information about data passing through your dial-up connection or Ethernet card and decodes the analyzed data. With CommView you can see the list of network connections and vital IP statistics and examine individual packets. Packets are decoded down to the lowest layer with full analysis of the most widespread protocols. Full access to raw data is also provided. Captured packets can be saved to log files for future analysis. A flexible system of filters makes it possible to drop packets you don't need or capture only those packets that you wish to capture. Configurable alarms can notify you about important events, such as suspicious packets, high bandwidth utilization, or unknown addresses. CommView is a helpful tool for LAN administrators, security professionals, network programmers, or anyone who wants to have a full picture of the traffic going through one's PC or LAN segment. This application is designed for Internet users and small and medium sized networks and can run on any Windows 98/Me/2000/XP/2003 system or Windows XP 64-bit Edition on AMD Opteron and Athlon64 processors. It requires an Ethernet, Wireless Ethernet, or Token Ring network card supporting the NDIS 3.0 driver standard, or a standard dial-up adapter. CommView features full decoding of the following protocols: ARP, BCAST, BGP, BMP, CDP, DAYTIME, DDNS, DHCP, DIAG, DNS, EIGRP, FTP, G.723, GRE, H.225, H.261, H.263, H.323, HTTP, HTTPS, ICMP, ICQ, IGMP, IGRP, IMAP, IPsec, IPv4, IPv6, IPX, HSRP, LDAP, MS SQL, NCP, NDS, NetBIOS, NFS, NLSP, NNTP, NTP, OSPF, POP3, PPP, PPPoE, RARP, RADIUS, RDP, RIP, RIPX, RMCP, RPC, RSVP, RTP, RTCP, RTSP, SAP, SER, SIP, SMB, SMTP, SNA, SNMP, SNTP, SOCKS, SPX, SSH, TCP, TELNET, TFTP, TIME, TLS, UDP, VTP, WAP, WDOG, YMSG, 802.1Q, 802.1X.
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IM-Snif allows a system administrator to view and log all Instant Messages passing through a LAN, including popular networks such as MSN Messenger, AOL Instant Messenger and ICQ Messenger. Internet Relay Chat and plain email are also supported. All protocols can be observed and logged in real-time.
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The best tool for doing LPT, COM and USB port's data transfer logging. Using this tool you can simply do monitoring and spying data transffered through ports. This is useful for people who want to research any additional HW connected to port like mobile phones. Be twice faster than your rivals!
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MSN Chat Monitor & Sniffer is a handy network-control utility for capture and observe MSN chat conversations on all computers in network. It is able to record conversations automatically in real time. And export all intercepted messages to HTML files for later processing and analyzing. It's easy to use, and it will monitor all conversations in your Local Area Network without the use of client software installed on the remote.
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X-NetStat Professional shows your current Internet and network connections in realtime. These connections are established each time you visit a web page, send an instant message, check your email, or anytime you do network activity that requires you to connect to another computer. They also appear when outside computers attempt to connect to your machine, authorized or not.

Information shown includes local and remote addresses, local and remote ports, the status, the age of the connection, how much bandwidth/traffic the connection is using, and the program EXE behind it. It's kind of like Internet/network radar, and you can even kill unwanted connections.

The Professional edition of X-NetStat offers a ton of additional features geared towards Network Administrators, like a Rules system to set up actions based on network conditions, a comprehensive Network Statistics window displaying information on network interfaces and protocols, a server that lets you access XNS information remotely, a collection of Lookup Tools (TraceRoute, WHOIS, Finger, DNS, Web Search, Server Version, NetBIOS Lookup, Online Tools, etc), a Port Database, Logging capabilities, transmission LED lights, a dockable ViewBar, and many more features.
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MSN Sniffer is world's first sniffer to automate MSN chat capturing and impact analysis. After installed on one computer, it captures MSN chat across all computers in the same LAN, analyze and save into database for future analysis. New version show IP for local MSN account, and support Intel wireless network adapter.

Visit MSN Sniffer 2 official website http://www.msnsniffer.com/ for details.

It is very easy to make it to work. Just run the MSN sniffer on any computer on your network, and start to capture. It will record any conversation from any PC on the network. No additional program installation is needed on the monitoring target computers. Everything will be recorded without being detected. It is especially useful for network administrators or parents, who need to monitor what their employees or kids are talking about with others.

You can download MSN Sniffer trial version before order to make sure it works for you. Buy now online for only $79 USD. After you order the MSN sniffer, you will get the registration information and enjoy the full-feature unlimited program.
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