I have written a paper which I am going to submit to a journal. Though I checked everything manually but before final submission, I want to check this through a software. Could you please suggest a free software which can fulfill my demand?
It is an interesting question ... currently, some publishers adopt these kind of tools in order to avoid plagiarism in papers. Other tools like Moodle also implement those facilities to avoid plagiarism in lecture works.
I found this post, http://www.grammarcheck.net/review-10-sites-that-check-for-plagiarism/, where 10 tools are reviewed, There are differences in accuracy between them, and also, the licence, which is paid-per-use in most of the cases.
@David Isern, Thanks for your reply and the link. Actually my university does not provide any such tool. I tried to use free software but these made me unsatisfied. :(