- Similarity Reports: Generates percentage-based similarity scores with matched source highlighting.
- Extensive Content Database: Compares submissions against student papers, academic journals, and web sources.
- Match Filtering: Allows exclusion of quotes, bibliographies, and small matches for cleaner analysis.
- LMS Integration: Integrates with systems like Moodle, Canvas, and Blackboard.
- Instructor Review Tools: Supports manual review and contextual interpretation of similarity results.
Turnitin Similarity
Institution-grade similarity checking for academic originality and integrity
Updated August 11, 2026
Turnitin Similarity Overview
Turnitin Similarity is built for schools and institutions that need to compare submissions with student papers, publications, and internet content. Its reports highlight matched passages and sources, while filters help instructors remove quotes, bibliographies, or small matches from view.
The system supports learning-platform and assignment workflows. A similarity percentage points instructors to material that needs review; it does not prove misconduct by itself.
Key Features
Pricing
| Plan | Price | What is included |
|---|---|---|
| Similarity | Custom institutional quote | Similarity Reports across student papers, publications and internet content |
| Institutional deployment | Custom quote | Assignment controls, educator workflows and support |
Pricing source: official pricing page.
Pros
Compared with |
Why this product may fit better |
|---|---|
| Quetext | Turnitin checks student-paper, publication and internet collections inside a school workflow. Quetext is easier for individuals, while Turnitin gives instructors more context for each match. |
| Copyleaks | Turnitin has a long-established Similarity Report and assignment-review process. Copyleaks offers broad AI and API products, while Turnitin keeps academic similarity at the center. |
| Grammarly | Turnitin lets educators filter matches and review sources rather than only showing a writing suggestion. Grammarly helps writers improve a draft, but it does not replace an institution's review process. |
| GPTZero | Turnitin is designed for school deployment and formal submission review. GPTZero is easier to access directly, while Turnitin gives institutions a more controlled record of the check. |
Cons
Compared with |
Where this product may fall short |
|---|---|
| Quetext | Quetext has free and paid self-service plans for individual writers. Turnitin does not publish a consumer price and usually cannot be bought by one student. |
| Copyleaks | Copyleaks publishes clear API and enterprise routes for developers and businesses. Turnitin is less convenient for a company that wants to add checks to its own product. |
| Grammarly | Grammarly helps with grammar, clarity and tone during everyday writing. Turnitin is a review system and does not provide the same continuous editing experience. |
| GPTZero | GPTZero offers direct sign-up, a free allowance and visible prices. Turnitin requires institutional purchasing and setup, which can be slow for a small team. |
Reviews
- SUNY Empire guide: This student guide explains how to open a Similarity Report, read its color bands and revise citations or paraphrasing before final submission. It is workflow guidance, not a product review or rating.
- University of Arkansas guide: The guide shows instructors how to open the report from Blackboard Ultra. It stresses that no percentage automatically proves misconduct and that the instructor must interpret each match.
