# Turnitin

> Turnitin sells software for text similarity checking, AI writing detection, writing feedback, grading, and secure assessment to educational institutions, researchers, publishers, and certification programs. Its products include Feedback Studio, Clarity, Originality, Similarity, iThenticate, Gradescope, and ExamSoft.

- **Founded:** 1998
- **Headquarters:** Oakland, United States
- **Founders:** John Barrie (Co-founder), Emmanuel Briand (Co-founder), Melissa Lipscomb (Co-founder), Christian Storm (Co-founder)
- **Products:** Turnitin Feedback Studio, Turnitin Clarity, Turnitin Originality, Turnitin Similarity, iThenticate
- **Notable:** Company-reported comparison holdings exceed 91 billion web pages, 1.9 billion student papers, and 190 million journal articles., Clarity was named to TIME’s Best Inventions of 2025, according to Turnitin’s announcement., Expanded from similarity checking into grading, secure assessment, and writing-process visibility.

## Products & services

- **Turnitin Feedback Studio** — Similarity checking, grading, rubrics, and formative feedback for student writing.
- **Turnitin Clarity** — Paid Feedback Studio add-on with a student writing space, writing-process reports, playback, and optional instructor-controlled AI assistance. Available July 15, 2025.
- **Turnitin Originality** — Additional academic-integrity capabilities including AI writing detection and authorship investigation, depending on license.
- **Turnitin Similarity** — Text comparison and similarity reports for institutions and integrated workflows.
- **iThenticate** — Similarity checking for researchers, publishers, and high-stakes documents; institutional AI detection is separately licensed.
- **Gradescope** — Digital grading for paper, online, and programming assignments, with answer grouping and supported AI-assisted grouping. Acquired in 2018.
- **ExamSoft** — Secure digital assessment for education, certification, and licensing. Acquired in 2020.

## Achievements

- Company-reported comparison holdings exceed 91 billion web pages, 1.9 billion student papers, and 190 million journal articles.
- Clarity was named to TIME’s Best Inventions of 2025, according to Turnitin’s announcement.
- Expanded from similarity checking into grading, secure assessment, and writing-process visibility.

## Latest updates

- **2026-08** — Launched multipart assignment types in Feedback Studio and Clarity, connecting stages such as outlines, bibliographies, and drafts.
- **2026-05** — Release notes describe instructor controls for Clarity AI chat helpfulness and response complexity.
- **2026-03** — Product updates announced Clarity AI chat support for 19 additional languages, beyond English.
- **2025-10** — Turnitin announced Clarity’s inclusion in TIME’s Best Inventions of 2025.
- **2025-07** — Clarity became available as a paid Feedback Studio add-on on July 15.

## Links

- Website: https://www.turnitin.com/
- LinkedIn: https://www.linkedin.com/company/turnitin
- Twitter/X: https://x.com/turnitin
- YouTube: https://www.youtube.com/@Turnitin
- Instagram: https://www.instagram.com/turnitinco/
- Facebook: https://www.facebook.com/TurnitinSoftware

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Profile page: https://yespress.io/turnitin
Published by YesPress — https://yespress.io
Last updated: 2026-10-21