While free plagiarism checkers can be effective in detecting duplication, they may have limitations in terms of the size of their databases and the depth of the search. Paid plagiarism checkers often provide more comprehensive results, in-depth analysis, and additional features. However, some free plagiarism checkers like Grammarly, DupliChecker, SmallSEOTools, and Quetext mentioned in this article, offer excellent capabilities and can be valuable tools for content creators on a budget.