Figma Super Tidy - Figma plugin to easily align, rename and reorder your frames
UX Flow Wireframe Prototyping System - Create beautiful user flows prototypes for your next project
Figma Map Maker - Figma plugin to generate map, supporting Google Maps, Mapbox
draw.io - Online diagramming application
Easometric Figma Plugin - With Easometric it's really easy to create isometric layers.
UMLGraph - UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.