How to start in cryptocurrency without investing?

[Sendo12]

I've heart that i can earn even without investing in cryptocurrency , how to do that?

I believe what you mean here is investing money. If you are in a corporation, that is possible. You can become a shareholder without having monetary investment and instead contribute through your knowledge and talents. But that's for corporations. In crypto, that would be impossible. In order to profit in this market, you need financial investment because the currency itself is the product.