Live Chat Rooms - Live Chat Rooms is one of the best chat apps that allows you to communicate with thousands of people around the world.
draw.io - Online diagramming application
Teen Chat Room - Teen Chat Room is a simple, powerful, and free to use chatting app created and published by Chat Messenger.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Teen Chat for Teenagers - Teen Chat for Teenagers is a fabulous social platform created and published by Chat Bruh.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.