Turnitin AI Report Checker in South Korea: Check Before You Submit
Korean universities typically run two plagiarism tools side by side: CopyKiller for Korean-language work and Turnitin for English. Korea University, for example, describes CopyKiller as a Korean program optimised for checking domestic papers, while Seoul National University runs training on both Turnitin and CopyKiller.
Korea University: CopyKiller and Turnitin
Korea University's library offers both tools under Plagiarism Prevention. It describes CopyKiller as "a Korean plagiarism testing program optimized for domestic articles," open to all faculty, staff and students with a portal or library ID, for dissertations, assignments, research papers and reports. Turnitin has its own separate guide on the same library site and is the usual choice for English-language work. Korean text gets no Turnitin AI score, so English papers are where the Turnitin AI report matters.
CopyKiller vs Turnitin
| CopyKiller | Turnitin | |
|---|---|---|
| Best for | Korean-language papers | English-language papers |
| Turnitin AI score | Not applicable | Yes, for English |
| Korean AI detection | Check your institution | Not supported |
Who in Korea should check first
- Graduate students writing English theses and journal articles.
- Students in English-taught courses and international programmes.
- Researchers submitting to SCI and SSCI journals that screen for AI.
- Students translating Korean drafts into English with AI tools.
Sample Turnitin AI and similarity reports
Both screenshots below come from the same 24-page, 6,364-word paper. The similarity report found 1% overall similarity. The AI writing report flagged 51% of the qualifying text as likely AI-generated. Tap either one to see it full size.
Screenshots shown for illustration. Your own reports arrive as full PDFs in your dashboard.
How to get your report from South Korea
- Create an account and buy a slot.
- Upload your .docx or .pdf (300 to 30,000 words for an AI score).
- Download your similarity report and AI writing report from your dashboard, usually within minutes.
$3.99 USD per document; your card converts to won automatically. Buying for a group? Buy 10 slots, get 1 free: every 10 slots you pay for come with 1 free, added automatically.
Next: how to read a Turnitin report and a page-by-page AI report example.
Frequently asked questions
What plagiarism checker do Korean universities use?
Many use CopyKiller, a Korean program optimised for domestic papers, alongside Turnitin and iThenticate for English work.
Does Turnitin detect AI in Korean?
No. Korean is not on Turnitin's supported AI detection list as of October 2026.
Who in Korea needs a Turnitin AI check?
Students and researchers writing in English, especially graduate students publishing internationally.