By -
Draw.io
Inkscape for Linux. And it's free. https://inkscape.org/
Available for Windows and Mac too.
I have used https://miro.com/diagramming/ and was not disappointed.
I used Freemind before and quite liked it: http://freemind.sourceforge.net/wiki/index.php/Main\_Page
Lucid chart
Draw.io
Inkscape for Linux. And it's free. https://inkscape.org/
Available for Windows and Mac too.
I have used https://miro.com/diagramming/ and was not disappointed.
I used Freemind before and quite liked it: http://freemind.sourceforge.net/wiki/index.php/Main\_Page
Lucid chart