Reasons you can act on
See signals such as stock phrases, generic transitions and vague claims, next to signals of human writing.
See why text looks AI-written, not just a score
Paste your text and get a signal strength out of 100, the reasons behind it and the sentences to look at. An honest estimate, never proof.
- Reasons for every result
- Sentence-level signals
- Up to 1,000 words at a time
49,000+research reports completed
9,700+documents peer reviewed
3,500+documents improved or reviewed
950+university email domains
Useful, because it's honest
Sentences to look at
It quotes the sentences that read most like unedited AI text.
Not a verdict
No detector can prove who wrote a text, and non-native English can trigger false signals. We say so on the result.
How it works
- 1
Paste your text
Up to 1,000 words at a time, depending on your plan.
- 2
Click Analyze
It takes a few seconds.
- 3
Improve your draft
Rewrite the flagged parts yourself or use the humanizer.
Then improve what it found
Send your draft to the humanizer or Document Improvement to fix what the signals point to.
- Keeps citations and numbers
- Choose how much changes
- Word files with tracked changes
Built for the way you work
Undergraduate and master's students
Assignments, dissertations and theses, with sources you can open and check before you hand anything in.
Researchers and faculty
Manuscripts, grants and reviews, with checked references and reports you can share with co-authors.
Teachers and editors
Use signals to start a conversation, never as evidence on their own.
Questions
How accurate is it?
Treat it as an estimate. No detector can prove authorship, and formal or non-native English can produce signals. Never use this result alone as evidence against someone.
Is it the same as a plagiarism checker?
No. It estimates writing patterns. It does not compare your text with other documents.