Smarter AI detection you can defend

Scan DOCX, PDF, TXT and other documents for AI-written text easily

Easily upload, scan, review and export
See which sentences triggered the score
Check for copied passages for free
Upload Your Document
Drop a Document Here
DOCX · PDF · TXT · RTF · ODT
From
Documents are encrypted in transit and deleted after 2 hours

More than an AI checker

Simplify your scans

  • Get a score you can actually explain to someone

  • See a sentence-level breakdown, not just a percentage
  • Compare against current and older model styles
  • Export the report as a PDF for your records
Document scanning

Simplify your plagiarism checks

  • Find copied passages and where they came from

  • Match text against published sources in a few clicks
  • Scan securely from your computer, phone or tablet
  • Keep your documents protected with end-to-end encryption
Plagiarism checking

Simplify your reports

  • Hand back something a student or client can act on

  • Explore report templates for classrooms and teams
  • Edit and personalise the summary for your context
  • Reduce review time with highlighted passages
Detection reports

Here's why people trust us

Making AI text simple
The DetectSimpli app showing a document with flagged sentences and a score The DetectSimpli app showing a document with flagged sentences and a score
An AI-powered detection suite with everything you need

All you need to
know about AI text

Frequently asked questions
Simple answers to your questions
What is the best free AI detector?
DetectSimpli is the best free online software detection tool because it supports commonly used document formats, such as DOCX, PDF, TXT, and RTF. A big plus is that the Plagiarism Checker and Report Builder are simple to use.
How do you scan a document on an iPhone or Android device?
Use DetectSimpli to scan, review or export any document from any device. Our online Report Builder is compatible with the most used web browsers including Chrome, Safari, Firefox, Microsoft and Opera.
Is DetectSimpli safe?
Yes, your file is 100 percent secure. Our customers' safety is first and foremost, so we don't store your information or document data. Export reports to PDF, Microsoft Word, or plain text worry-free.
How accurate is AI detection?
No detector is perfect, and DetectSimpli  shows you the evidence behind every score rather than a single number. Open the DetectSimpli Report tool, review the flagged passages, and decide for yourself.
Detect AI text now
Our software makes detection for documents and essays fast and simple-
just upload a document or paste your text to begin