IP Messenger

IP Messenger is a completely free chat and instant messaging program that allows you to communicate inside your local area network. This pop-up-style application provides a platform wherein you can stay in contact with different users in your system. It is a social app that is based on TCP/IP (UDP) and operates impressively in a serverless machine. In addition, this communication tool is capable to transfer files and folders, send image embedded messages, and capture desktops. For speedy exchange conversation internally, IPMsg is the best option as compared to Skype or Slack.