Is it free to join sites?

Well yes, its 100% free to join freelancing websites.  To get work at freelance sites you need to invest some time, that is, you have to spend few hours each day in order to get work quickly.

Usually it’s always free to join the sites. However, all the sites charges a very small fee for the project you won, completed and GOT money. Usually the fee is several percents.

So in my opinion, it’s better to become just a gold member, and pay only 12$ fee, and do not care about any project fees anymore.  Just imagine, if you complete 100 projects a months, and do not pay any commissions, you save a really great money!

So the choice is yours.