I want to check for plagiarism.
Compare your document against available external sources. See what the check covers and how your price is calculated before you order.
Paid check · price shown before payment
Explore the plagiarism check →
Before you submit
Know what your document is saying about its sources.
Run a plagiarism check, an AI-writing check or both. You receive a report that helps you review flagged passages, trace source matches and decide what needs another edit.
Your question · your starting point
What do you need help with?
Preparing your first check or working through an existing report? Choose your goal to find the right next step.
I want an AI text check.
See which passages show patterns associated with AI writing. The result is an indicator, not proof of who or what wrote a text.
Paid check · understand its limits first
Explore the AI check →I am unsure about my references.
Look up references in Crossref and compare the DOI, title, authors and year. Review uncertain matches before relying on them.
Free · up to 20 references
Check my references →I want to understand the findings.
What does a percentage tell you? Which matches need attention? Learn how to read the report and investigate its sources.
Free guide · work through it yourself
Understand my report →I want to revise my document.
Start with your original document and existing report. Find out how to review changes and prepare a revised version.
Free local tools · AI revision not activated yet
Prepare my revision →Looking for something else?
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Choose the right question
Plagiarism and AI detection are not the same test
A source match can be legitimate and an AI score can be wrong. The useful part is the evidence in context—not a single percentage.
Plagiarism check
Compare passages with discoverable sources and inspect the matches. Use the report to verify quotations, citations and paraphrases.
AI-writing check
Review sentence-level signals that may resemble machine-generated writing. The result is an indicator, never proof of authorship.
Combined check
Run both analyses on the same uploaded document when you need source review and an AI-writing indication before submission.
From file to findings
A report you can work through
The scan does not make an academic judgement for you. It gives you a structured starting point for checking each passage.
Upload
PDF, DOCX, DOC, TXT, ODT, RTF and PAGES files are accepted up to 50 MB.
Select
Choose plagiarism, AI or combined analysis after the standard-page count is calculated.
Pay
See the total before checkout. The minimum order value is €2.90.
Review
Open the report from your email and check the highlighted passages in their context.
Use the result responsibly
What a scan can—and cannot—tell you
A match needs interpretation
References, quotations, standard phrases and correctly cited passages may still appear as matches. Read the source and classify the passage before editing it.
An AI score is not evidence of misconduct
False positives occur, especially across languages and edited prose. Never use a detector score on its own to accuse a writer.
Evidence-led guidance
Research integrity beyond a similarity score
One hundred and eighty English guides turn broad principles into practical records, checks and source decisions.
Research integrity
Document decisions, data handling and responsible publication.
AI transparency
Disclose, preserve and independently verify AI-assisted work.
Research data
Make data, code and analysis paths easier to inspect and reproduce.
Media citations
Attribute images, screenshots, maps, tables and audiovisual sources.
Source evaluation
Assess publications, web evidence, corrections and retractions.
Examination procedures
Preserve evidence, review reports and prepare a clear factual response.
Publication ethics
Handle authorship, peer review, corrections and competing interests transparently.
Higher education practice
Plan teaching, supervision and institutional rules with traceable decisions.
Research methods
Document method choices, data paths and analytical decisions for review.
Clear commercial terms
Know the price before checkout
Single checks cost €0.29 per standard page; the combined check costs €0.39 per standard page. A minimum order value of €2.90 applies.