AI Detection
Surface likely AI-generated passages with an understandable probability score.
8.4%
AI probability
Detect AI-generated content, uncover plagiarism, and understand every source match with an evidence-first report built for students, educators, and publishing teams.
50K+
Documents checked
98.7%
Detection accuracy
4.9/5
Average rating
Academic writing depends on clear attribution and original analysis. This highlighted passage requires source verification.
The report explains not only the score, but also the evidence behind every finding.
A focused workflow for the people responsible for clear, original, and defensible content.
ACADEMIC TEAMS
Student & faculty work
RESEARCH GROUPS
Evidence-led review
PUBLISHING
Editorial confidence
INTEGRITY OFFICES
Consistent standards
Confidence at a glance
Clear signals, transparent evidence, and a workflow teams can rely on before content moves forward.
50K+
Documents checked
Across academic and professional workflows
98.7%
Detection accuracy
Clearer signals for every review
120+
Countries reached
Supporting teams around the world
4.9★
Average rating
Loved for clarity and ease of use
One review workspace
Move from a first-pass check to evidence you can explain, share, and act on with confidence.
Surface likely AI-generated passages with an understandable probability score.
8.4%
AI probability
Compare your document against web and academic sources without losing the context.
3
source matches
Review whether key claims are supported and where attribution needs attention.
94%
coverage
See a clear similarity score with the passages and sources that shaped it.
9%
similarity
Trace highlighted text back to the exact source for faster review.
12
linked references
Share a polished, evidence-rich report with the people who need it.
ready to share
A clear path to confidence
A focused review flow that keeps the evidence close to the decision.
Add a DOC, DOCX, PDF, or TXT document in seconds.
AI detection and plagiarism checks run side by side.
Inspect matching passages, sources, and citation signals.
Share a clear report with the evidence already organized.
See the evidence
The result is not just a score. It is a clear review surface with the context behind every signal.
Submitted today · 1,842 words · English
Research integrity depends on transparent methods and clear attribution of the ideas that shape an argument.
The highlighted passage has a close source match and should be reviewed alongside the reference below.
Why PlagCheckr
Designed for high-stakes content decisions, PlagCheckr makes complex analysis easier to understand and easier to defend.
Every score connects to highlighted text, sources, and a report you can inspect.
From first draft to final review, the experience stays focused on the document.
Your content is handled with a security-first workflow and clear control over your reports.
ORIGINALITY
90.8%
Strong source independence
AI PROBABILITY
8.4%
Low confidence signal
Clear controls for every document and report.
From the people using it
“PlagCheckr saved me hours of worry. The reports are incredibly detailed and easy to understand.”
“I use this tool to check all student submissions. The AI detection feature is remarkably accurate.”
“Essential tool for any content creator. I run every piece through PlagCheckr before publishing.”
Make your next review certain
Start with one document. Get an evidence-rich report you can understand, trust, and share.