Effective Plagiarism tools..

Commercial.

1.ithenicate

2.Urkund

3.Turnitin

Top Five Free plagiarism Tools

1.Viper

2.Plagscan

3.Paperrater

4.Plagium

5.Plagtracker

The following tools or software can be of help concerning plagiarism check. All the best.

http://plagiarisma.net/

http://www.paperrater.com/free_paper_grader#

http://www.duplichecker.com/index.php

http://www.shambles.net/pages/staff/ptools/

Ithenticate is commercial software being used by most of the publishers like Elsevier, Springer, Wiley etc

http://www.ithenticate.com/products/plagiarism-checker-for-authors-and-researchers/

Plagscan is a commercial one but free trial is also available. http://www.plagscan.com/

Grammarly, is an online paid software but it is also available for free trial (15days).

http://www.grammarly.com/?q=plagiarism&gclid=COvt2O6i6rMCFQYb6wodJCUA9w

http://www.checktext.org

http://www.scanmyessay.com/

http://www.dustball.com/cs/plagiarism.checker/

http://turnitin.com/

http://www.docoloc.de/

http://www.crossref.org/crosscheck/index.html