Can successful freelancing can only be done on freelancing platforms?

[Btaliat]

No. Freelancing can be done on any platform that suits the freelancers. You only need to make sure that you are making use of the platform that can easily showcase you to the world. You can make use of the social media platforms like Twitter and Facebook and any other social media platforms. There are even some that are making use of their peers. They will just ask them to get on touch with them when they have clients.