Free Word AI detector for .docx files
Upload a Word document and find out how likely it is that AI wrote it. Free, private, and nothing you upload is kept.
Check your textHow to read your AI detector score
The AI detector gives you a single number from 0 to 100. It is the estimated chance that AI wrote the text, not a yes or no. Here is what each band means.
Probably a person
Reads like human writing. We did not pick up the patterns a model tends to leave behind.
Hard to say
Some of it leans one way, some the other. Read it yourself before you draw a conclusion.
Probably AI
This has the marks of machine-written text. Read it closely before you conclude anything.
How the Word AI detector works
Three steps, a few seconds, no setup.
Add your text
Paste it, upload a Word or PDF file, or drop in a link to the page you want to check.
We check the patterns
We pull the text out of your Word file, then weigh it against the patterns of AI writing and human writing.
Read the score
You get a number from 0 to 100 and a plain read on how likely AI was involved.
Check a Word document directly
Switch to the Upload tab and choose your .docx file. We pull out the text, score it, and show a result in seconds, with no copying and pasting. It works on essays, reports, letters and any other Word document.
What a high score means
A high score means the writing matches patterns AI tends to produce, not that anything is wrong. Formal or carefully edited writing can score high on its own. Read it as a prompt to look closer at the flagged parts, never as proof.
Track changes, comments and styles
We read the accepted body text of your document. Comments, track-change markup and styles do not factor in. If you want the detector to score a specific version of a draft, accept or reject the relevant changes first, then upload.
.docx, not .doc
Use the modern .docx format. The legacy .doc binary format from older Word releases is not supported; open it in Word or LibreOffice, save as .docx, and upload that. The PDF route in the PDF detector is another option.
Where your document goes
We open your document in memory, pull out the text, and score it. The file and the extracted text are dropped the moment you have a result.
Nothing is logged, stored, or used to train anything.
Word AI detector FAQ
Is the Word AI detector free?
Yes. Upload as many documents as you like, with no account.
Which file types work?
Modern Word files (.docx). You can also paste text or upload a PDF.
How big a file can I upload?
Up to 10 MB, which covers almost any document.
Do you keep my document?
No. The file and its text are dropped as soon as you get a score.
Can I check a PDF instead?
Yes. The PDF AI detector handles PDF files the same way.