Colasoft Capsa Alternatives

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.

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

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

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

Ethereal® is used by network professionals around the world for troubleshooting, analysis...

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

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

Intercepter-NG is a multifunctional network toolkit for various types of IT specialists.

Free open source tool to perform TCP based session relay

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

TheCodingMonkeys, authors of software like SubEthaEdit.

packet sniffer tool that captures all HTTP requests/responses sent between the Web browser and the Web server and displays them in a simple table