NOT ON THE LIST IN 2019

Turnitin’s academic plagiarism checker is useful for both students and teachers

Website: turnitin.com
Cost: Commercial.
Availability: Online

Past Overall Rankings
2018: –   2017: –   2016: 126   2015: –   2014: –   2013: –
2012: –   2011: –   2010: –        2009: –   2008: –   2007: –

Comments from some of those who selected Turnitin as one of their Top 10 Tools

“for improvement of reporting” University/College teacher, USA, 2016