Hey.
Is it safe to exchange big amounts on non-custodial exchangers like changelly or shapeshift, or are they designed for small transactions?
I'm a newbie and I want to know if it's safe. Also, I want to know if it's safe to exchange crypto on classical exchanges like binance.
It depends on how big amount, but if you are going to make a trade, better do it in a reputable exchange, to avoid any error that may arise, or you will have an option, to divide your funds and not only do it on one exchange.
Since you are a newbie, you should do a lot of research, you made the right decision to post your concern here I hope all our answer satisfy you.