Wireshark is described as 'Foremost network protocol analyzer with multi-platform support, deep protocol inspection, VoIP analysis, and extensive file format compatibility' and is a leading network analyzer in the network & admin category. There are more than 50 alternatives to Wireshark for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best Wireshark alternative is tcpdump, which is both free and Open Source. Other great apps like Wireshark are CloudShark, NetworkMiner, Proxyman and Ettercap.
Mojo Packets™ is web based tool that simplifies trace based analysis and troubleshooting of connectivity/performance issues observed in Wi-Fi (IEEE 802.11) environments.
Ax3soft Sax2 is a professional intrusion detection and prevention software (NIDS) which excels at real-time packet capture, 24/7 network monitor, advanced protocol analysis and automatic expert detection.
Sysdig is open source, system-level exploration: capture system state and activity from a running Linux instance, then save, filter and analyze. Think of it as strace + tcpdump + lsof + awesome sauce.
NetHogs is a small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process.
HttpCanary is a powerful HTTP/HTTPS/HTTP2/WebSocket/TCP/UDP packets capture and analyzer app designed for Android platform.
SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers. You can view the TCP/IP conversations in Ascii mode (for text-based protocols, like HTTP, SMTP, POP3 and FTP) or as hex dump (for non-text base...
Ostinato is a network packet and traffic generator and analyzer with a friendly GUI. It aims to be "Wireshark in Reverse" and thus become complementary to Wireshark. It features custom packet crafting with editing of any field for several protocols: Ethernet, 802.
TcpLogView is a simple utility that monitors the opened TCP connections on your system, and adds a new log line every time that a TCP connection is opened or closed.
Proxygen is the best HTTP proxy tool for testing apps and debugging remote API endpoints right on your iPhone, iPad and Mac. And it’s built to delight you while doing it.
Zimperium's zANTI is a mobile penetration testing toolkit that lets security managers assess the risk level of a network with the push of a button.
The Network Diagnostic Tool (NDT) is a client/server program that provides network configuration and performance testing to a users desktop or laptop computer. The system is composed of a client program (command line or java applet) and a pair of server programs (a webserver...
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It can do automated analysis of a packet capture.