what is a good tool to check for copying?

[Beetle King]

I am doing an assignment. I want to check my report for copying. What free online tool have you tried?

 

[froggyboy604]

Your school might have copying software available for free to students. I'm not sure if the homework copying databases are publicly available for free to the public since the students have to login to those copying website to compare their homework with other homework which people upload to the website.

They are also not very accurate sometimes because sometimes students who don't copy can write the same sentence.