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Bring your words
Paste your essay, article, or draft. You can also import a text file directly into the editor.
A little certainty before you submit
Turnitin AI Detector &
Free AI Checker
Great writing starts with confidence. Check for AI patterns,
understand your results, and make every word your own.
Free to use No signup Built for thoughtful writers
No signup required Sentence-level feedback Up to 18,000 characters Clear, actionable insights
or drop a .txt / .md file here
0 words · 0 / 18,000 characters
Minimum 500 characters. Longer passages give more context.
Your resultsReady when you are
—AI score
WRITING ANALYSIS
A little clarity goes a long way.
Your AI score and sentence-level insights will appear here.
AI score—
High-score sentences—
Sentences analyzed—
Sentence-level insights
Every sentence tells a story.
Run a check to see which parts need a closer look.A helpful signal, not a verdict on authorship.
No account needed. History stays in this browser.
✳ ChatGPT✳ Claude Gemini Llama
FROM QUESTION MARK TO NEXT STEP
A clearer picture, in three simple steps.
Less guesswork. More understanding. A better way to review your writing.
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Look a little closer
Run a check to explore AI writing signals, from your overall score to individual sentences.
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Review with confidence
Read the feedback, revisit your sources, and decide which changes make your writing stronger.
FEEDBACK THAT TAKES YOU FURTHERYour words deserve
Your words deserve
more than a percentage.
A number can start a conversation. Clear, sentence-level feedback helps you know what to do next.
Give your writing a second lookBuilt for review, revision, and responsible writing.
See beyond a single score
Explore sentence-level scores and understand exactly where your writing needs a second look.
Keep your own voice
Use specific feedback to make thoughtful edits while keeping your ideas and perspective intact.
Less friction. More clarity.
No account to create. Paste your text, run a check, and get back to the work that matters.
You control your history
Revisit recent checks in this browser, download your results, or clear your local history anytime.
A closer look at your writingEXAMPLE
A sentence worth revisiting.
Go beyond the highlight
Consider the context, check the evidence, and keep your own voice.
UNDERSTAND THE SIGNALSHelpful feedback.
Helpful feedback.
Human judgment.
AI detection looks for patterns. It cannot tell the whole story of how a piece of writing was created.
- Read the sentence, not just the score. Explore the feedback in the context of your whole draft.
- Keep your process visible. Notes, sources, and earlier drafts help show how your ideas developed.
- Make informed decisions. Treat the result as a starting point for review, never as proof of authorship.
GOOD QUESTIONS. CLEAR ANSWERS.
A few things you might be wondering.
Everything you need to get started with your next check.
How does the AI detector work?
Paste a passage of 500 to 18,000 characters and run a check. The analysis service returns sentence-level AI scores and explanations. The overall score is the average of those returned sentence scores. Select a sentence to explore the patterns behind its score.
Is this the official Turnitin website?
No. This is an independent writing review tool and is not affiliated with, endorsed by, or operated by Turnitin. The free checker uses a separate analysis service. Advanced report and Humanizer links take you to AceEssay, which has its own terms and pricing.
Can an AI detector be wrong?
Yes. AI detection can produce false positives and false negatives. A score is a signal to investigate, not proof that someone used AI. Review the highlighted passages alongside your drafts, source material, and the requirements of your school or publisher.
What can I upload?
You can import plain text (.txt) and Markdown (.md) files up to 1 MB, containing no more than 18,000 characters. For a PDF or Word document, copy its text into the editor. A minimum of 500 non-padding characters is required for analysis.
Do I need an account to check my writing?
No account is required for this free checker. Paste or import your text and start a check. External advanced detection and rewriting services may have separate account or payment requirements.
What happens to my text?
When you run a check, your text is sent to the analysis provider through this website’s server. The last 10 completed checks are stored in your browser, where you can restore or clear them. This website does not intentionally persist your text on its server. The provider’s own data handling policies apply.
YOUR NEXT DRAFT STARTS HEREWrite with intention.
Check your writing Write with intention.
Submit with more confidence.
Take a moment to see your writing from another angle.