提交前检查论文中的 AI 写作痕迹。与 Turnitin 无关联。
免费试用 500 词，无需注册。
Turnitin sells its AI writing detection only to schools, so students cannot run a Turnitin check of their own. This free checker is not Turnitin and cannot predict a Turnitin score. It runs your text through our AI detection service and shows an AI score from 0 to 100, a short verdict and the sentences that read most like AI, so you can review your draft before you hand it in.
Read this before you rely on any score, here or anywhere else.
Turnitin’s AI writing report is part of your instructor’s view of a submission. It needs at least 300 words of prose, and Turnitin says its predictions on short documents are mostly “all or nothing”. Our guide to Turnitin and GPTZero reports explains what instructors see.
Detection is more reliable with enough text and context.
Each detector uses its own model, training data and thresholds, so the same essay can score very differently from one checker to the next. A low score here does not mean Turnitin will report a low score, and a high score does not prove that AI wrote the text.
If your work is ever questioned, your drafts, notes, sources and version history say more than any detector score. Keep them until the grade is final, and follow your course’s policy on AI tools.
Read them in context. Generic openings, stock transitions and claims without sources tend to score as AI. Add your own examples and sources, vary sentence length and say things the way you would say them.
No. This page is not Turnitin and is not affiliated with Turnitin. It uses a separate AI detection service.
Not as a student. Turnitin sells its AI detection only to schools and organizations, and your instructor sees the report when you submit through your school’s system.
No. Different detectors use different models, so their scores often disagree. Treat this result as a rough signal for revising, not as a prediction.
Yes, up to 500 words without signing up. An AI check uses half of the input word count, rounded up, so the free words cover about 1000 words of text.
Check at least a few paragraphs. Short texts give less reliable scores here and in Turnitin, which needs at least 300 words of prose.
Text is sent to the detection provider to produce the report. Signed-out checks are not saved to any history; see the privacy policy for details.
Paste at least a few paragraphs, then read the highlighted sentences.
Count words, characters, sentences, and repeated terms instantly.
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Open toolReview possible AI-generated patterns in a draft.
Open tool