avaamo - Simple, Secure Business Messaging
Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
SupportKit - Embed Zendesk support into your iOS app with 1 line of code
Bazoocam - Bazoocam is a popular chat website that rapidly connects you with strangers to chat.
Fleep for Business - Simple, open collaboration and chat with admin capabilities
Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.