Best tcpdump 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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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.

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

Packet Sender can send and receive UDP, TCP, and SSL on the ports of your choosing.

PCAPdroid is an android app to capture the phone traffic and analyze it remotely (e.g. via Wireshark). The traffic can be easily downloaded from a remote device thanks to the integrated HTTP server, or streamed to a remote UDP receiver.

socat is a relay for bidirectional data transfer between two independent data channels.

Portfwd, Port Forwarding Daemon, stands for port forwarding daemon.

Do you need to map a specific TCP or UDP port on your machine to another port on another machine?

Fiddler is a debugging program for websites.

Capsa Enterprise, a strong intelligent network traffic analysis & monitoring software, can quickly pinpoint network problems in real time & improve network performance.

Simple Port Forwarding works with WebPages and not directly with your router.