Postman is a tool that help us to direct HTTP request. we used a lot.
ConEmu is a very good command console integration tool. you can use Windows CMD, git, Cygwin, Powershell etc there.
we use cygwin to simulate linux environment to use linux network commands.
we use fiddler to capture http request.
we use wireshark to capture other network traffic. e.g. SSL certificate handshake.