Top 15 Plagiarism Checker Online for 2023

 Here are 15 plagiarism checkers that were considered among the best at that time:

1. Turnitin

2. Grammarly

3. Copyscape

4. Plagscan

5. Quetext

6. Scribbr

7. Unicheck

8. SmallSEOTools

9. DupliChecker

10. Grammarlookup

11. ProWritingAid

12. PaperRater

13. PlagiarismCheckerX

14. Plagramme

15. Viper Plagiarism Checker

Remember to review the features, pricing, and terms of service of each plagiarism checker to find the one that suits your needs best. Additionally, new plagiarism checkers may have emerged since my last update, so it's worth conducting further research to find the most up-to-date and reliable options.