Plagiarism & Similarity Check for Research Papers
A professional iThenticate similarity report with AI writing detection — the same platform journals and publishers use to screen manuscripts. Transparent per-page pricing, no subscription, and a report you can submit to a journal or university.
Submit Your Request Here
Attach your paper, choose the page band, and the similarity report comes back by email.
jwbook.org/similarity-checkWord (.docx) or PDF • AI writing detection included • report delivered in 1–2 working days
iThenticate is Turnitin’s Tool for Research Papers
Best for students
Best for researchers
Turnitin and iThenticate are made by the same company, and the difference is not quality — it is who each one is built for. Turnitin is the service most universities run for coursework and student submissions. iThenticate is Turnitin’s professional product for research: it searches subscription publisher content from Crossref, Elsevier, Springer, Wiley and others that the student edition does not reach, and it produces the report format that journal editorial systems expect.
There is a second, practical difference that catches authors out. A Turnitin class submission is normally stored in the student repository. Check your own manuscript that way and a later submission of the same paper can match against your earlier copy — your own work reported as plagiarism. iThenticate does not add documents to that repository, which is why researchers are told to use it for anything headed to a journal.
Which One Is Better for Your Research?
Best for students
Best for researchers
Short version. Submitting an assignment to your university → Turnitin. Submitting a paper to a journal, a thesis to a university, or a book to a publisher → iThenticate. This service uses iThenticate.
Similarity Check Price List
| Pages | Word Count | Price (₹ INR) |
|---|---|---|
| 25 Pages | 6,250 Words | ₹500 ₹20.00 / page |
| 50 Pages | 12,500 Words | ₹800 ₹16.00 / page |
| 100 Pages Most research papers | 25,000 Words | ₹960 ₹9.60 / page |
| 300 Pages Typical PhD thesis | 75,000 Words | ₹2,400 ₹8.00 / page |
| 500 Pages | 125,000 Words | ₹3,600 ₹7.20 / page |
| 1,000 Pages Book manuscript | 250,000 Words | ₹5,600 ₹5.60 / page |
| 5,000 Pages | 1,250,000 Words | ₹22,400 ₹4.48 / page |
| 10,000 Pages Institutional volume | 2,500,000 Words | ₹44,000 ₹4.40 / page |
Bands are calculated at roughly 250 words per page, so a 25,000-word paper sits in the 100-page band regardless of its margins or font size. Pick the band at or above your document’s length. Not sure which applies? Send the file to jwbook.org/similarity-check and it will be confirmed before anything is charged.
How to Check Your Paper for Plagiarism
1. Prepare the document
Export as Word (.docx) or PDF with the text selectable — a scanned image of a page has no text for the software to compare. Keep the references in; they are excluded from the score afterwards rather than deleted beforehand.
2. Submit the request
Open jwbook.org/similarity-check, attach the file and choose the page band. You will get an acknowledgement with a reference number.
3. iThenticate runs the comparison
The document is compared against internet sources, published journal content from Crossref and the major publishers, and previously submitted work. AI writing detection runs at the same time.
4. Read the report, not just the number
The PDF gives an overall similarity index and a source-by-source breakdown. The breakdown is the part that matters — see the section below on why a single percentage decides nothing.
5. Revise and recheck
Rewrite the flagged passages in your own words, cite properly, then request a recheck to confirm the score before you submit to a journal or university.
What Plagiarism Actually Means in Academic Work
Plagiarism is presenting someone else’s words, ideas, data, figures or structure as though they were your own. It does not require intent. A missed citation, a paragraph pasted into a draft and never rewritten, a figure reused without permission — each is treated as plagiarism by a journal even when the author never meant to deceive anyone.
That is why a similarity check is a drafting tool, not a judgement. Running it before submission tells you what an editor is going to see, while you still have time to fix it. Running it after a rejection tells you why the rejection happened.
The Percentage Is Not the Answer
The similarity index is the share of your text that matches something else. It is a starting point, not a verdict. A 5% score can be plagiarism if it is one continuous copied paragraph. A 25% score can be perfectly acceptable if it is made of properly quoted material, standard method descriptions and the reference list. What an editor reads is the source-by-source breakdown, and so should you.
Use the bands below as orientation, then check the requirement of the specific journal or university you are submitting to — the threshold belongs to them, not to the software.
How to Reduce Similarity Honestly
The aim is a paper that is genuinely yours, not a lower number. Text spinners and synonym-swapping tools lower the score while making the writing worse, and reviewers notice unnatural phrasing immediately — several journals now treat it as a form of misconduct in itself.
- Read, close, then write. Take notes from a source, put it away, and write the passage from your notes. What comes out will be your sentence structure rather than a rearrangement of theirs.
- Quote deliberately. If the original wording matters, quote it properly and cite it. A correctly marked quotation is not misconduct, even though it raises the percentage.
- Cite while you draft, not afterwards. Most accidental plagiarism is a citation that was meant to be added later and never was.
- Do not fight the method section. Standard procedures and instrument names legitimately match other papers. Describe your own parameters and let the overlap stand.
- Cite yourself. Reusing your own earlier text is still reuse. Cite the earlier work as you would anyone else’s.
- Recheck after revising. Confirm the change worked before you submit, rather than hoping.
Plagiarism Check — Frequently Asked Questions
Is iThenticate the same as Turnitin?
They are two products from the same company. Turnitin is the student-facing service most universities use for coursework; iThenticate is the professional tool for researchers, journals and publishers. iThenticate searches subscription publisher content that the student version does not cover, which is why journals and editorial systems ask for it.
What similarity percentage is acceptable?
There is no universal number. Most UGC CARE Approved journals, including IJRTI, look for below 15%. Scopus standard and international journals commonly accept up to 20%. PhD theses are usually required to be below 10% excluding references. Always check the specific requirement of the journal or university you are submitting to — the threshold belongs to them, not to the software.
Does a low percentage mean my paper is safe?
No, and this is the most common misunderstanding. A 5% score made up of one continuous copied paragraph is plagiarism; a 25% score made entirely of correctly cited quotations, standard method descriptions and a reference list is usually fine. The source breakdown is what an editor reads, not the headline figure.
Will submitting my paper for a check put it in a database?
No. iThenticate does not add documents to the student repository the way a Turnitin class submission does, so checking a manuscript before publication does not cause it to be flagged as a match against itself later. This is one of the practical reasons researchers are told to use iThenticate rather than a student account.
Do you detect AI-generated content?
Yes. AI writing detection is included at no extra cost and flags content likely generated by ChatGPT, Gemini, Claude and similar models. Treat it as an indicator to review rather than a verdict — the detector reports a likelihood, and the responsibility for what is in the paper stays with the author.
How are pages counted for pricing?
By the page bands shown on this page, calculated on roughly 250 words per page. A 25,000-word paper falls in the 100-page band whatever its formatting, so changing margins or font size does not move it between bands.
Can I check the same paper more than once?
Yes. Rechecking after revision is the normal way to use the report — you fix the passages the breakdown flagged and confirm the score before submission.
Is a plagiarism check included if I publish with IJRTI?
Yes. Screening is part of the IJRTI publication process and included in the publication fee. This service is for authors who need an independent report for an external journal, a university submission, a thesis or a book manuscript.
What file formats can I send?
Word (.docx) and PDF are the reliable choices. LaTeX should be exported to PDF first. A scanned or photographed document cannot be checked, because there is no machine-readable text to compare.
How long does it take?
Standard turnaround is 1 to 2 working days. Large documents in the 5,000 and 10,000 page bands take longer; the acknowledgement email confirms the expected date.
Ready to Check Your Paper?
Send the document and the page band. The report comes back with a full source breakdown and AI writing detection.
jwbook.org/similarity-checkQuestions first? Email editor@ijrti.org or WhatsApp +916354478822.
Publishing with IJRTI? Plagiarism screening is already part of the publication process and included in your fee — you do not need to buy a separate report. This service is for authors who need an independent similarity report for an external journal, a university thesis submission, a book manuscript or a conference paper.
