Check Your Writing with a Free Turnitin AI Checker
Paste or upload your writing to get an estimated AI indicator and risk level. Use the result as a review signal, then continue to the detailed check for sentence-level findings and rewrite guidance.
Add at least 320 words, then select Check for AI Writing to see an estimated AI indicator and risk level.
What You Can Do with This Turnitin AI Checker
Start with a free AI-writing pre-check, understand what the result means, and move to detailed findings when your draft needs a closer look.
Check Before You Submit
Run a quick AI-writing pre-check before submitting an essay, research paper, or other academic work.
Understand Your AI Indicator
See an estimated AI-writing percentage and risk level so you can decide whether your draft needs a closer review.
Continue to Detailed AI Analysis
Need more than a quick estimate? Continue to T-checker for sentence-level findings, matched sources, and a downloadable detailed report.
Get Your Turnitin AI Checker Result in 3 Easy Steps
Paste or upload your text, run the free pre-check, and review your estimated AI indicator in just a few moments.
Why Use a Turnitin AI Checker Before Submission?
A pre-check gives you time to review an unexpected AI signal before you submit your paper to Turnitin. The result helps you decide whether your draft needs a closer look—before it reaches your instructor.
Preview the estimated AI indicator, risk level, and flagged-sentence count included in the free pre-check.Free AI Pre-Check vs. Detailed T-checker Report: What’s the Difference?
Not sure which option fits your needs? Compare the free pre-check with the detailed T-checker report to see what each includes and when a closer review may be helpful before submission.
Who Should Use a Turnitin AI Checker?
Pre-check essays and research papers before submitting them to Turnitin, then review any unexpected AI indicator while you still have time to revise.
Review formal or repetitive phrasing that may trigger an unexpected AI indicator before submitting your work.
Review AI-assisted drafts for writing that may sound formulaic or overly predictable before publishing or sharing the final version.
Check abstracts, literature reviews, and methods sections where formal or repetitive language may sometimes trigger an AI detector.
Turnitin AI Checker FAQ
The pre-check analyzes writing patterns and returns an estimated AI indicator, but no AI detector is perfectly accurate. Treat the percentage as a signal for human review rather than proof of authorship.
If you need to understand what is behind the result, continue to T-checker for sentence-level findings, matched sources, and a downloadable detailed report.
Not necessarily. AI detectors use different models, qualifying-text rules, scoring thresholds, and system updates, so the same paper may receive different results. If you need a closer review, T-checker’s detailed report provides sentence-level findings, matched sources, and downloadable AI-writing and similarity results. This added detail can help you review your paper before submitting it to Turnitin.
No. An AI indicator estimates whether qualifying text may be AI-generated, while a similarity score identifies text that matches other sources. Neither result alone proves authorship or plagiarism.
No. This free pre-check uses our independently developed model to estimate AI-writing signals. It does not provide an official Turnitin result or report. Turnitin AI Detector is independent and is not affiliated with, endorsed by, or an official product of Turnitin, LLC.
Yes. You can paste or upload your paper for a free pre-check before submission. Your content is not added to a repository, is deleted within 24 hours, and is not used to train the model or shared with third-party service providers.
Uploaded content is deleted within 24 hours and is not submitted to a repository. It is not used to train the model or shared with third-party service providers.
Because no repository copy is created, using this pre-check does not add your paper to a source database.
Do not rewrite a paper only to lower a score. Review the argument, wording, citations, and your institution’s AI-use policy, then revise any passages that do not reflect your own reasoning.
For a closer review, T-checker provides sentence-level findings, matched sources, and a downloadable detailed report you can compare with your drafts.
Use AI Detection Results as Review Signals—Not Final Judgments
An AI indicator cannot prove authorship, and a similarity match does not automatically establish plagiarism. Always consider results alongside human review.Read the Full DisclaimerWorried About Your Turnitin Result?
Check your paper before submitting it to Turnitin. Run a free AI pre-check to review your estimated AI indicator and risk level, or preview a detailed report to see what a closer review includes.