Review essays, research papers, and professional documents for matching sources and potential AI-generated writing — then inspect the evidence behind every result in a downloadable report.
1 credit
Per document check
AI + Plagiarism
Detection & analysis
Evidence-first
Detailed reports
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, research, publishing, and integrity teams
ACADEMIC TEAMS
Student & faculty work
RESEARCH GROUPS
Evidence-led review
PUBLISHING
Editorial confidence
INTEGRITY OFFICES
Consistent standards
What you get
Analyze documents, review evidence, and understand AI and similarity signals in one focused workflow.
AI detection
Identify content that may contain AI-generated text.
Plagiarism checking
Find potential matching passages and review source context.
Source analysis
Understand matches and the sources behind them.
Evidence-first reports
Review findings with supporting evidence in one organized report.
Explore the platform
Choose the PlagCheckr tool that matches the decision in front of you, then keep your findings and source context together.
Two checks, two questions
A plagiarism check compares your document with existing sources. An AI-content check looks for writing patterns that may indicate generated text. PlagCheckr keeps the two results separate so each one is read in the right context.
See which passages match existing sources, inspect the evidence behind each match, and decide whether a quotation, citation, or a more independent rewrite is needed. A similarity score points to passages worth reviewing — it does not, by itself, prove misconduct.
Explore the plagiarism checkerReview probability signals for AI-generated writing alongside the passages that shaped them. Detection is an indicator, not proof of authorship: short texts, heavy editing, and formal writing styles can all affect the result, so it belongs in a human review.
Explore the AI detectorNew to similarity reports? Read what a good similarity score looks like and how to interpret a plagiarism report.
Product capabilities
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.
Pay only for the checks you need. No hidden fees.
Pay as you go
From $1.50 /check
Ideal if you only check documents occasionally.
Volume discounts
Save up to 50%
Buy more checks, pay less per check.
Secure payments 30-day credit validity Detailed reports
Instant access
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Your data is always protected
Made for careful review
Students, researchers, and professionals
FAQ
Still have questions? Email [email protected] and we'll get back to you within one business day.
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