Dear Prashant Koli,

Attached herewith the list of Top or Best Plagiarism software or checker or detectors having free of cost access. Also I have added list of Paid access.

01. Dupli Checker

02. Copyleaks

03. PaperRater

04. Plagiarisma

05. Plagiarism Checker

06. Plagium

07. PlagScan

08. PlagTracker

09. Quetext

10. Viper

11. Grammarly’s

12. Small Seo Tools

13. Edubirdie

14. Dustball

15. DMCA

16. Unicheck

17. WebConf's similar page checker

List of top best paid plagiarism checker tools:

01. Turnitin

02. Whitesmoke

03. ProWritingAid

If you want in depth details of above software, Kindly visit my answer mentioned in below link:

https://www.researchgate.net/post/Plagiarism_software_having_free_of_cost_access#view=5cba1a4fc7d8ababb85d4189

I hope I have answered your question.

With Best Wishes,

Samir G. Pandya

Thanks for your reply sir. This will really helpful to me.

Dupli checker

Copy leaks

PaperRater

Plagiarisma

Plagium

Thanks for your reply sir @ Dinesh Karunaratha

Regards

Below is some free sites.

Dupli Checker

Copyleaks

Plagiarisma

Plagiarism Checker

PlagScan

PlagTracker

Quetext

Viper

Turnitin(Best one but you have to pay)

Thank you sir

@Mohammad Nasar