SoundCli.ps can be used like a search engine to find just the right cough, cry or laugh you happen to need. What is a little different about this site is that not only can you download sounds but you can upload as well.
To be specific, you can upload sounds that you generate or actively record in the wild. You don't have to register to hear or download the sounds but if you do register you can manage your own personal sound library.
Yes, you will see ads on the site. You can ignore them. Or not. It is up to you.
As usual, I petition you to read or at least glance over the Terms of Service. The usual stuff including the sound effects are provided "AS IS"; meaning if something doesn't work the way you feel it should or you catch a cootie then you have little to no recourse in being compensated for your trouble.
Let me see what else, you have to have permission from any human you record, you can't upload copyrightable content, SoundCli.ps makes no due diligence to confirm quality of said records or copyright status but if they get hit with a DCMA copyright notice they will yank your stuff.
Oh, and be over 13 years of age to use the site.