YouiDraw - Draw and Design Vector Graphics, Logo, Text, icon in the Cloud.
draw.io - Online diagramming application
formo.one - Create generative art from any kind of photo
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.
DrawBerry - All the features of other vector editing applications such as Adobe Illustrator or Inkscape, in a...
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.