Easily draw diagrams & collaborate with others online
I'm using Lucidchart to create figures (system architectures, concepts) for professional technical documentation (aerospace sector).
Create and share diagrams easily
Create slick diagrams and collaborate with your team
Have been using this ever since it got out of beta.
Really intuitive and fast, just wish mindmapping was on the table.
Overall, really recommend, especially when diagraming in a team.