How to view webpage across different browsers?

[naimeiiz]

Hi Friends,
I would like to check my website in different browsers and resolutions to make sure it appears properly everywhere. I was thinking,is there any website that allows you to view how the webpage would appear across different browsers and resolutions.

I am not looking for Validator websites,i am looking for actual websites that shows you the real simualtion.

Your help would be appreciated.
Thanks