Is there any free tool that can detect whether a content is copied or not? (Except Copyscape)
Hi 995amit, this has been discussed quite a few times and there's no need for duplicate content
Please take a look athttp://www.sitepoint.com/forums/showthread.php?1039607-Duplicate-Content-Checkinghttp://www.sitepoint.com/forums/showthread.php?892565-Content-Duplicate(and a Search too if those don't help)And if you still have specific questions start a new thread describing what you're looking for that others don't provide.
Meanwhile, Thread Closed