TcpCatcher for Windows

TcpCatcher is free proxy server software, and a great TCP and HTTP and HTTPS monitor. As a developer tool, TcpCatcher will let you debug any client-server application by displaying tcp packets. As an educational tool, TcpCatcher will help understanding any TCP based protocol. Since HTTP has became the most commonly used protocol, TcpCatcher provides a large tool box for helping you debug any HTTP based conversation. It records all traffic between your browser and the Internet. HTTP headers definition pops up; Unlike any other tools, TcpCatcher has the great ability of letting you interfere in the communication at proxy level: turn on catch mode and debug step by step the client-server communication, each packet intercepted being friendly editable; Provide your own java hook and apply a programmatic operation on each packets going through.