Turnitin
Similarity and AI-writing checks
The Four Mismatches · Turnitin
Fits on everything we could check
For a student in the United States, the country it was built for.
CurriculumNo exam claimed
It names no school exam, so this counts neither for nor against it.
- The maker names no exam
LanguageNot verified
We haven't found which languages it teaches in.
PriceBought by schools
Only schools can buy it, so there is no family price to compare.
DeviceFits
Works on a laptop or tablet, what most students in the United States use.
Independence: our publisher builds learning products too. We never review or score its products, and no tool pays to be listed or to rank higher — how we assess fit.
What it does
What the AI actually does — Text-similarity matching against a large indexed corpus, plus an AI-writing-detection feature flagging passages statistically likely to be LLM-generated.
Why it was built — Academic-integrity infrastructure — check student work for originality against the web, publications and a huge archive.
Who built it
- Company
- Turnitin (iParadigms)
- Founders
- John M. Barrie
- HQ / origin
- Oakland, California, USA
- Founded
- 1998
- Model
- B2B / B2G
- Ownership
- Owned by Advance Publications (acquired 2019)
- Languages
- Multiple
We record durable facts only — no funding-raised or user-count figures. Unverified fields are marked [TBD] rather than guessed.
Where it sits
Turnitin is on the Learning Tools Index, in assessment & academic integrity, built in United States.