Transfer all my wordpress files and posts (including all my WP tables)

Hello,

I want to transfer all my wordpress files and posts (including all my WP tables) and plugins (and plugin tables) to another domain. How can I do this? If i install wordpress to that new domain, what is the easiest way for me to have an exact replica of my existing wordpress from other domain? Are there some sort of plugins or any app that can do this?

I dont want to mess up my posts and plugins, and am afraid that if I transfer them one by one, I might end up messing my wordpress. This is because I believe options table cannot be transfered because it contains the link (or domain name + directory) of my wordpress files.

Thanks in advance.