EXCALIDRAW!!!!!

LOVE, LOVE LOVE EXCALIDRAW!

Sorry, caps, but, I really do love it that much. And it's just right there on the web, free, you can load it up on any computer and illustrate any concept. LOVE it.

I've used it for everything from a quick sketch during a brainstorming session, to highly complex network diagrams that wind up embedded in 'official' docs in Confluence and such, which would traditionally be the realm of Visio in my line of work. I love it so so so much - and am not in any way affiliated, lol, just a very passionate user!

Draw.io my feeling is you you need anything more fancy, you have missed the point of flowcharts and things like it. I have used the basic tools in libre office and word, it just depends on what you need to do.

LibreOffice Draw worked well enough for me. It can even open Visio documents. It doesn't save to Visio though, so I had to give up on it eventually as the company mandated Visio documents, even though they just end up being inserted into other documents as PNG.

But the drawing part was solid for me.

I was looking for one of these yesterday and honestly they're all pretty clunky web browser applets. If I'm replacing a Microsoft Office program I want a fully featured desktop app, not a .io website, yknow?

Do you prefer to code your diagrams? Many options to see and try at:

https://kroki.io/

Pikchr is surprisingly quick to get results in.

I love yEd graph editor because you can import your own assets and make it like Visio.

I personally used latex with the tikz library.. It was strange but all the other things annoyed me

I like drawdb.app.