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Plagiarism Check

Similarity check for academic documents before submission: a detailed report of matched passages, their sources and what to fix.

Satisfaction guaranteed Fast turnaround 100% confidential
What's Included
  • Comparison against academic and web sources
  • Overall similarity percentage
  • Matched passages with sources
  • Self-plagiarism detection
  • Guidance on fixing each flagged area
  • Confidential handling

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About This Service

Plagiarism Check

Journals and universities run similarity checks on almost every submission. A high score does not necessarily mean plagiarism. Common causes are a quotation missing its citation, a methods section reused from your own earlier paper, or a literature review paraphrased too closely from its sources. But a high score can still lead to rejection or an integrity query. Our Plagiarism Check lets you see what the journal will see, before you submit.

Your document is compared against a large database of published journal articles, conference proceedings, theses, books and web content. You receive a similarity report showing:

• The overall similarity percentage.
• Each matched passage, highlighted in your text.
• The source of each match, with the percentage it contributes.

Most importantly, we help you read the report. A number alone says little. Matches in correctly cited quotations, standard method descriptions and the reference list are expected; matches in your own analysis or discussion need attention. Where passages are flagged, we indicate whether the fix is a missing citation, quotation marks, or rewriting in your own words.

Self-plagiarism is a frequent surprise. Reusing text from your own published papers, thesis or conference abstracts without citing them can be flagged just as strongly as someone else's work. The report shows these matches so you can cite or rephrase them.

We recommend running the check as the last step, after editing: language editing changes wording, so a check on the final text gives the result that matters. Your document and report are kept confidential and are not added to any public repository.
What's Included

Everything Covered in One Service

No hidden extras — every item below is part of your order.

Comparison against academic and web sources
Overall similarity percentage
Matched passages with sources
Self-plagiarism detection
Guidance on fixing each flagged area
Confidential handling
Certificate of Editing Included

Provided free with every completed order

Upon completion, you will receive an official Certificate of Editing issued by LexicoEditing. This certificate confirms that your document has been professionally proofread and edited by a qualified language expert — a valuable addition when submitting to journals, universities, or funding bodies.

Officially issued
Verifiable online
PDF download
How It Works

Three Simple Steps

1
Upload Your File

Submit your document in Word, PDF, or plain text — securely encrypted.

2
Expert Edits Your Work

A qualified specialist proofreads and corrects your document to the highest standard.

3
Download & Publish

Receive your polished document with track changes and a free editor's report.

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Client Reviews

What Researchers Say

Trusted by academics and researchers from universities worldwide.

"The proofreading service is thorough and precise. Every sentence was examined carefully. My supervisor commented on the noticeably improved language quality. Thank you!"

T
Thomas Müller
Heidelberg University

"Fantastic experience from start to finish. My research paper on cognitive linguistics was edited with great care and sensitivity to the field terminology. Will definitely use again."

M
Maria García
Universidad Complutense de Madrid

"Thank you very much to the Lexico Editing team for the professional and high-quality academic editing. The manuscript was carefully improved in terms of clarity, structure, style, and APA 7 consistency. I especially appreciate the detailed editorial notes and the team’s attentive support throughout the process. The service was excellent and very helpful for preparing the article for submission."

D
Dr. Marhabbat Nurov
Turan University

"My PhD thesis needed polishing for international journal submission. The editing was meticulous and the editor clearly understood the academic context. Highly recommend."

A
Ayşe Kaya
Boğaziçi University

"I was skeptical at first, but the quality of editing truly exceeded my expectations. The editor even flagged a potential methodological inconsistency I had overlooked. Impressive."

D
Dr. Kenji Tanaka
University of Tokyo

"Thank you very much to the Lexico Editing team for the excellent work on my second manuscript. The editing was professional, careful, and very helpful in improving the clarity, academic style, and overall quality of the article. I truly appreciate the team’s support, responsiveness, and attention to detail."

D
Dr. Marhabbat Nurov
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FAQ

Frequently Asked Questions

Everything you need to know about our Plagiarism Check service.

Our detection software cross-references your text against billions of published sources, including academic journals, conference proceedings, institutional repositories, theses and dissertations, internet content, and previously submitted documents. The result is a comprehensive similarity report covering both published and unpublished sources.

Acceptable similarity thresholds vary by journal and institution. Most peer-reviewed journals consider a similarity score below 15–20% acceptable, provided that matched passages are properly cited and the overall originality of the work is clear. We provide guidance on interpreting your report alongside the score.

Detection software flags all matching text, including quoted passages that are correctly cited. These matches are highlighted in the report but are not considered problematic as long as they are properly attributed. Our report guidance helps you distinguish between acceptable matches and areas that genuinely need attention.

Yes. The similarity report can be submitted as evidence of originality to journals, universities, or funding bodies that require it. Many institutions now routinely request plagiarism reports as part of the submission or examination process.

Yes. We can check journal articles, dissertations, theses, research proposals, conference papers, book chapters, and student assignments. The service is available for documents in English, Turkish, or bilingual format.

The check itself identifies and explains the matches. If you want the flagged passages rephrased, Academic Editing can do this while keeping your meaning and adding correct citations.
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