Paperspace - GPU cloud computing made easy. Effortless infrastructure for Machine Learning and Data Science
draw.io - Online diagramming application
Shadow - Transform any device into a supercharged gaming machine.
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.
Basefolder - Use your home PC as your own personal cloud storage server.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.