[cricalix]

There's also PlantUML (lots of ads on the page, unfortunately) with support for all sorts of diagram types, and it's extensible. Swimlane, UML, sequence and about 20 more.

[alexkwood]

with this plantuml excel plugin, you keep keep all your diagrams in excel and also no need to learn the syntax for couple of plantuml diagram types https://docs.cornerstoneappsolutions.com/getting-started/ https://www.youtube.com/@CornerStoneAppSolutions/videos?app=...

[sorokod]

also supports macros