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How to import / export profiles in Tox clients?
qTox
Import
Importing through GUI was possible before, but due to a regression one has to do it manually now.
Linux
Copy the .tox profile to ~/.config/tox/
Windows
Copy the .tox profile to %APPDATA\tox\
Export
Go to your profile page (click on an avatar) and click on Export. Save your .tox profile somewhere.