Best tcpflow Alternatives & Competitors in 2025

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

Open Source

Ettercap is a suite for man in the middle attacks on LAN.

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tcpdump is a common packet analyzer that runs under the command line.

Open Source

Packet Peeper is a free network protocol analyzer (packet sniffer) for Mac OS X.

Netcat is a featured networking utility which reads and writes data across network connections...

Open Source

SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers.

Debookee is the simplest & most powerful network traffic analyzer for macOS.

A TCP, UDP, and SCTP network bandwidth measurement tool

NetFort LANGuardian is a network visibility solution which uses deep packet inspection to monitor, troubleshoot, and report on user & network activity.

NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.

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.

Packetyzer provides a Windows user interface for the Ethereal packet capture and dissection library.

PacketSled is next generation network forensics and breach detection.