Online chartOnline charts - create your own charts online.
A pretty decent site for creating diagrams, a good and visual choice of templates.
Personally for me, clarity is the defining criterion in many cases. There is simply no time to study everything and everywhere. As a rule, I make a request, and I choose what looks clear.
Draw.ioEditor of charts online.
We go, we will be offered to use cloud services, if you have them: Google Drive, Dropbox ...
Offers to use Google account and registration is not needed.
Df offers a variety of different Such as diagram templates.
We take the ready-made and edit for our purposes as the basis.
The result can be saved as JPG, PNG or SVG formats, and also as an XML file that can be opened in Diagramly.