Excalidraw - I forgot about this one...
I bookmarked this several years ago and forgot about it.
Excalidraw is a whiteboard and flowchart app. Not as sophisticated as Visio for sure, but good enough to get a casual job done.
I particularly like the look of the output which have a hand-drawn feel to them.
Excalidraw — Collaborative whiteboarding made easy
Excalidraw is a virtual collaborative whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
