International Journal for Educational IntegrityTool evaluation
Using Internet based paraphrasing tools: Original work, patchwriting or facilitated plagiarism?
Free online paraphrasing tools can rewrite whole passages. The authors ran an experiment on part of a published text and report that online originality-checking services performed poorly at linking the rewritten output to its source.
For teaching Matching services alone may fall short on machine-paraphrased text, going by the authors' report that they struggled in this experiment.
Core reading Free to read