Free AI Detector for Students

Check any academic work for AI-generated content before submission. Free tool designed for university and college students. Free for the first 1,500 words - no sign-up, no credit card.

Free to 1,500 WordsNo Sign-Up RequiredNo Credit CardUnlimited Re-ChecksError Rate PublishedInstant Results

Looking for a free AI detector for your student work? Most AI detection tools like GPTZero, Originality.ai and Turnitin charge per scan or require a monthly subscription. This one reads the first 1,500 words of any document free, with no sign-up and no credit card, and checks a full document of up to 30,000 words for €4.99 once rather than every month. As a student, you face increasing AI detection scrutiny on every assignment you submit. Universities worldwide have adopted AI scanning tools, and the consequences of being flagged range from grade penalties to expulsion. Our free AI detector is designed specifically with students in mind - it works with any document type, from short essays to full theses, in PDF or DOCX format. No sign-up and no payment for the first 1,500 words; a full thesis is €4.99 once. Just upload your work and get a detailed analysis of 16 AI writing indicators. Use it to verify your writing before every submission and protect your academic career.

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Why Students Need an AI Detector

Pre-Submission Check

Run every assignment through our detector before submitting. It takes seconds and can save you from academic integrity issues.

False Positive Awareness

AI detectors produce false positives, especially for non-native English speakers. Knowing your score helps you prepare if questioned.

Writing Improvement

Understanding AI patterns helps you develop a more natural, distinctive writing style that stands out.

Anonymous, Not Untraceable

We never ask for your name, university or supervisor, and we never show your text to anyone. The words we analyse are retained with no identity attached, and they help build the reference corpus that makes the checker fairer - which is how we drive down the rate at which honest writing gets called machine-written. Your work is never compared against another student's to look for matches, and no result ever points at another document.

How Our Student AI Detector Works

  • Upload your assignment in PDF or DOCX format, or paste your text directly.
  • Our tool analyzes 16 statistical indicators across five families: vocabulary diversity (MTLD, hapax, Yule's K), sentence rhythm (length uniformity, length variation, burstiness, opening diversity), phrase fingerprints (60+ AI-favored phrases and transition word frequency), document structure (paragraph uniformity, passive voice, sentence-to-sentence flow), and statistical fingerprints (Zipf exponent, character entropy, punctuation diversity, word length variation).
  • Each factor is scored from 0 to 100 and weighted to produce an overall AI probability score.
  • Review the detailed breakdown to understand which patterns were flagged.
  • Revise flagged sections and re-check until you are satisfied with your score.

Student Tips for Authentic Writing

  1. Always write your first draft from scratch. Use AI only for brainstorming, not writing.
  2. Include references to specific lectures, course readings, and class discussions.
  3. Write in your natural voice - do not try to sound overly formal or academic.
  4. Vary your sentence and paragraph lengths. Monotony is a strong AI signal.
  5. Proofread for AI-characteristic phrases and replace them with your own wording.
  6. Keep notes on your writing process in case you need to demonstrate authenticity.

Frequently Asked Questions

The first 1,500 words are free, with no sign-up, no credit card and no cap on how often you run it. Unlike GPTZero, Originality.ai or Turnitin, checking a full student work is a single €4.99 payment rather than a subscription - and it includes 14 days of unlimited re-checks.
The free tier covers your first 1,500 words, which is enough to check an abstract or a chapter and not enough to check a thesis - that is the paid check, at €4.99 once. We keep the free tier genuinely useful because it is how people find us, and because a student who cannot pay should still be able to see what a detector sees.
Our tool uses similar statistical analysis methods as paid tools. While paid services may offer additional features like plagiarism checking or API access, our core AI detection analysis is comprehensive and effective for individual document checks.
Yes. It takes only seconds and can prevent serious academic consequences. Make it a habit to check before every submission.
AI detectors can produce higher false positive rates for non-native speakers. Our detailed breakdown helps you understand which specific patterns are being flagged so you can address them.
No. We do not share any data. Your documents are analyzed locally and we do not store your text.

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Check your whole thesis

Check the whole document instead of the first 1,500 words, with our measured error rate beside the verdict and a report you can download. One payment of €4.99, no subscription, no account.

See what the full check costs