Any good online resources to draw a good UML?
draw.io is a pretty good website . there are others too
Yeah that's what we used on our team
LucidCharts is a good resource to make UML diagrams.
If you are on Mac I used ClickCharts and found that it works pretty well.
I used lucidchart for my groups, but UML is not the only/main function, so I'm not too sure how it compares to other websites/apps.
