Turnitin
Turnitin is the gold standard AI-powered plagiarism detection platform used by 16,000+ institutions worldwide to ensure academic integrity.
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About Turnitin
Turnitin is the world's leading academic integrity platform, used by over 16,000 educational institutions globally. It uses AI to compare submitted work against 1.8 billion student papers, 99 billion web pages, and 170 million journal articles—generating a Similarity Report that shows instructors exactly which text matches existing sources and where it originated. Turnitin is also a pioneer in AI writing detection.
Comprehensive Similarity Detection
Turnitin's database of 1.8 billion student papers is its most powerful differentiator—it catches students who copy from other students' past submissions, which web-only checkers miss entirely. The Similarity Report highlights matched text with color-coded percentages and links directly to the matching sources.
AI Writing Detection
Turnitin's AI detection capability identifies text generated by ChatGPT, GPT-4, and other AI writing tools with high accuracy. It provides sentence-level AI detection scores alongside traditional plagiarism checking—giving educators a comprehensive view of both copying and AI assistance in student work.
Feedback Studio
Beyond plagiarism detection, Turnitin's Feedback Studio provides inline commenting, rubric grading, and audio/video feedback tools for instructors. This transforms Turnitin from a plagiarism detector into a complete assignment feedback and grading platform.
LMS Integration
Turnitin integrates with every major learning management system—Canvas, Blackboard, Moodle, Google Classroom, D2L—through LTI integration. Submissions happen directly within the LMS workflow without separate accounts or interfaces for students.
Key Features
1.8B Student Paper Database
Detect copying from past student submissions—the most powerful plagiarism database available.
AI Writing Detection
Identify ChatGPT and AI-generated text alongside traditional plagiarism checking.
99B Web Page Index
Compare against virtually the entire indexed web for online source matching.
Feedback Studio
Inline commenting, rubrics, and grading tools for complete assignment review.
LMS Integration
Works inside Canvas, Blackboard, Moodle, and Google Classroom.
Use Cases
For University Professor: Requires all paper submissions through Turnitin, automatically flagging high-similarity work for review.
For Academic Institution: Deploys Turnitin institution-wide to maintain academic integrity standards and build a deterrent culture.
For Graduate School: Uses Turnitin to check thesis and dissertation submissions against the global student paper database.
For Online Course Provider: Integrates Turnitin with Canvas to automatically check all assignment submissions in e-learning courses.
Pros & Cons
Pros
- Largest student paper database—catches peer copying
- Gold standard trusted by 16,000+ institutions
- AI detection integrated with plagiarism checking
- Seamless LMS integration
- Feedback Studio adds value beyond detection
Cons
- Institution-only—students cannot purchase individually
- Expensive for small institutions
- AI detection has false positive risks
- Student papers are retained in the database permanently
Turnitin
Plagiarism Checker Ai tools
Pricing Plans
Paid Subscription
Check website for details
Institutional License
CustomPer-student or per-submission institutional pricing.
- Similarity checking
- AI detection
- Feedback Studio
- LMS integration
- Analytics dashboard