Totally recommend https://www.draw.io https://www.draw.io if you're on Google Apps. Syncs with Drive, has a ton of cool elements, and all elements are super cus

Totally recommend https://www.draw.io https://www.draw.io if you're on Google Apps. Syncs with Drive, has a ton of cool elements, and all elements are super customizable if you know a little code. Also the developer is very responsive -- I've submitted bugs and feature requests and they've gotten back to me right away.