Gali N. answered 05/20/19
Native Hebrew speaker with 10+ years of teaching experience.
"with love" would be translated באהבה.
"Made with love" could be translated as נעשה באהבה. That would be for something you made by yourself for example.
The phrase מעוצב באהבה would mean designed with love. That would fit something like a jewelry or anything that involves a personal design.
You could also say מיוצר באהבה which would mean made (as in manufactured) with love. That would be suitable for anything that is manufactured rather than made individually.