Step 1: Sign up for a Free account. (After signing up, check your email for account verification.)
Step 2: Visit your favorite torrent site. (Piratebay.org for this example).
Step 3: Copy the Direct-Link of your torrent file
Step 4: Paste the link into the website then click 'GET'. After that, it will show you the files included in that torrent. Just click "Initiate" then wait for it to be converted.