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check before submission, and ensure originality.

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Choose Standard Plan for your everyday essays and assignments - you'll get both an AI and a plagiarism report.
Choose Academic Plan for your dissertation, thesis, or journal submission - the same tool used by top publishers.
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Detect
Accepted formats: .docx / .pdf · 40028000 words · Languages: English, Spanish, Japanese · Essay/thesis format only (not presentations or scanned files)
Choose Standard Plan for your everyday essays and assignments - you'll get both an AI and a plagiarism report.
Choose Academic Plan for your dissertation, thesis, or journal submission - the same tool used by top publishers.
0/28000
Upload file
Detect
Accepted formats: .docx / .pdf · 40028000 words · Languages: English, Spanish, Japanese · Essay/thesis format only (not presentations or scanned files)

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Standard Plan
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What You Get:1 x AI Detection Report + 1 x Plagiarism Similarity Report1 x iThenticate AI Detection Report
Best For:Undergraduate & Master's students, routine courseworkPhD candidates, researchers submitting to journals
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Receive a clear, detailed report highlighting areas that may need attention. Use it to improve your work and ensure originality.

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Detect potential plagiarism or AI-generated content so you can revise responsibly. Focus on producing quality work, not avoiding detection.

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Frequently Asked Questions

After July 16, 2024, Turnitin AI reports show AI content as follows: 0% → displayed as 0%, 1%-19% → displayed as *%, 20% or higher → exact value displayed. This is to account for potential inaccuracies in estimating AI content. If your school doesn't require a 0% AI ratio, *% is typically acceptable.
Turnitin AI detection is currently available for English, Spanish, and Japanese. For best results, we recommend submitting documents written primarily in English.
Reports may fail if: Your document is written in a language not supported by AI detection, Your document exceeds the word count limit (400–28000 words). If neither applies, try submitting again.
AI detection tools cannot perfectly identify AI content. Even minor rewriting tools or overly formal phrasing may trigger a flag. Use clear, natural writing to reduce false positives.
Our system is designed to never store or index your submissions. You can check your documents as many times as needed without worrying about them being added to any database.
Turnitin applies strict standards to avoid false positives, ensuring fair evaluation. Scores may differ across tools because each uses different algorithms and thresholds.
Results are typically delivered within 30 minutes. During peak hours, processing may take slightly longer, but we always aim to deliver within the hour.​
Turnitin AI & Plagiarism Checker