Try using platforms that dont require Credit Cards.
Some platforms, like LambdaTest, offer free trials with no credit card required, which is ideal if you want to explore capabilities without the stress of billing surprises. LambdaTest, for instance, is great for testing websites across multiple browsers and devices — all in the cloud.
I used LambdaTest to test a cross-browser issue on a freelance project, and I appreciated not needing to enter billing info just to explore. No hassle and totally transparent.