Jitsi is a free and open source video conferencing and instant messaging application. It was released in 2003. Jtsi is compatible with Linux, Windows, Mac Os X. Jitsi allows you to connect with friends via a best and secure system. You can use Jitsi for chatting with friends regularly you can also use Jitsi for office use like if you want to do a meeting with your employes then you can use Jitsi for video conferencing. Jitsi says that they have different video conferencing technology, Jitsi passes everyone video and voices to all participants without mixing while video conferencing.