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Turnitin · Similarity + AI detection

Check before you submit.
Powered by the same Turnitin source schools use.

Upload theses, coursework, application essays, or long-form drafts and get Similarity + AI reports in minutes. No repository storage, no archive, delete after download.

  • 30 - 120 secTypical report time
  • Similarity + AITwo reports in one run
  • Delete after downloadNo retained originals or reports
Why us

One private check is easier than a last-minute rewrite.

Similarity and AI thresholds vary by school, but seeing your score before submission is always the calmer move. We turn it into one upload.

The same Turnitin source schools use

We call official Turnitin Similarity and AI detection, matching against massive web and academic corpora with the same scoring logic.

Similarity + AI in one submission

Get an originality percentage and AI-writing probability from the same upload, without bouncing between platforms.

Works for Chinese and English

Supports Chinese, English, and mixed-language theses. PDF, DOCX, and TXT are supported up to 50 MB per file.

No archive, delete after download

Your text is used only to generate the current report. Delete it from the console after download; it is not added to any student repository.

Reports in 30 - 120 seconds

Institution-grade Turnitin accounts run in the background. Typical reports finish in 30 seconds, busy periods in 1-2 minutes, with notifications when ready.

Run one report without an account

Paste an authorization code and complete the full flow. Register later if you want to migrate history into an account.

How it works

Three steps to a school-style Turnitin report.

No complex setup, no plugin install, no trial-account friction. You upload, we process, you download.

01

Upload

PDF, DOCX, or TXT up to 50 MB. We estimate word count before submission so credits are never spent silently.

02

Analyze

A real institutional Turnitin account generates Similarity and AI reports in parallel. Your draft is not stored in a student repository.

03

Get reports

Download dual PDFs or view them online. Click highlighted passages to inspect sources, then manually delete server copies.

What users say

Checking before submission becomes a habit.

"I checked the day before submission: 18% similarity, almost identical to the 17.3% from my adviser. I submitted with confidence."

- Master's graduate · Literature

"My posts kept getting flagged for high AI probability. Now I run AI detection before publishing and revise below 15%."

- Newsletter writer

"My application essay went through five rounds. Checking each version myself made the whole process much less stressful."

- Graduate applicant
FAQ

A few things you may want to ask first.

Is the similarity score the same as my school's Turnitin?

Yes. We call official Turnitin Similarity and AI detection, from the same source used by institutional versions. Scores can vary slightly if a school enables additional private collections, but the overall logic is aligned.

Will my paper be stored in Turnitin and affect my school check?

No. We use a non-repository workflow for report generation only. Your document is not written into the global student paper repository, so a later school submission will not spike because of this check.

Do you include AI detection, and how reliable is it?

Yes. It is Turnitin's official AI-writing detection, with whole-document probability and paragraph-level highlights. It is designed to identify directly generated large-language-model text, so thoroughly rewritten drafts usually score lower.

How long does it take?

Usually 30 to 120 seconds. During exam or graduation peaks it may take 3-5 minutes. You can close the page; we notify you when the report is ready.

Which formats and languages are supported?

PDF, DOCX, and TXT up to 50 MB per file. Chinese, English, mixed Chinese-English writing, and 30+ languages supported by Turnitin can be analyzed.

Can institutions or developers use an API?

Yes. We provide a REST API plus SSE event streams, with structured failure codes. See /en/docs for documentation and /en/for-developers for contact details.

Submitting tonight? There is still time to check.

No card required, no review queue. Upload, wait a minute or two, and read the report.