FREEDocument AI Detector · no signup to start

AI detection for documents

Upload a DOCX or PDF and get a per-page AI score with highlighted sentences — built for educators and editors checking whole assignments at once.

Per-page scoresDOCX · PDFNo signup
Document Detector
Per-page AI score · highlights

Drop a DOCX or PDF

Up to 5 pages free. The document is read in your browser and never uploaded.

RESULT
IDLE

No document checked yet

Upload a DOCX or PDF, or try the example, to get per-page AI scores.

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WHY TEXTSIGHT

Check the whole document, not just a paragraph

Per-page scores

See which pages read as AI-generated, not just an overall number — ideal for long assignments.

Sentence highlights

The riskiest sentences are flagged so you know exactly where to look.

500 pages & bulk PRO

Free covers 5 pages; Pro handles 500-page documents, .docx reports and bulk upload.

Need a sentence-level breakdown?

Paste the text into the full AI Detector for line-by-line analysis.

AI Detector
FAQ

Document detector questions

What file types are supported?
DOCX and PDF with selectable text. Scanned image-only PDFs require OCR, available on Pro.
How accurate is document-level detection?
Per-page scoring is strong evidence but not proof. Use it to triage which pages need a closer human read, and confirm anything high-stakes.
How many pages can I check for free?
Anonymous users get 1 document a day up to 5 pages; a free account allows 3 a day up to 20 pages; Pro handles 500-page documents with .docx reports, bulk upload and 30-day history.
Is my document uploaded?
No — it's read locally in your browser and never sent to a server.
Can I check many documents at once?
Bulk upload is a Pro feature; the free tool checks one document at a time.
Does it work on mobile?
Yes — fully responsive.