Hello, excuse my english, google helps me ;-) Can I use the fonts for t-shirts who I want to sell the t-shirts? Thank you

Hi,
it all depends on which font you're talking about.
Look just above the Download button.
example : "Kostenlos für privaten Gebrauch" means you can't use the font for profit, unless you pay for it.

Thanks Damz

don't hesitate to contact the designer of the font you're looking for.