Pre-Submission Thesis Similarity & AI Check

Why theses need a dedicated check

Long documents accumulate risk: literature reviews dense with citations, methodology sections using standard phrasing, and chapters adapted from your own earlier papers. All of these produce legitimate matches — but you want to see and explain them before your committee does.

A similarity report highlights each matching passage with its source and gives you an overall score per document, so you can review chapter by chapter instead of facing one surprise at the end.

Typical use cases for a thesis check

Master's candidates commonly check the literature review first, because it is the chapter that quotes and paraphrases most heavily. Doctoral candidates often check methodology and results chapters where standardised terminology, instrument descriptions, and statistical phrasing repeat wording used across their field.

Students who have published a conference paper or article drawn from their own thesis chapters also check for self-overlap, since previously published work of your own can appear as matching text and usually needs to be acknowledged rather than removed.

How to check your thesis with Plagiarism & AI Check

Upload a chapter or the full thesis (PDF, DOCX, or TXT, up to 20 MB), enter your email, and pay $10 by card. Your report is run manually and emailed to you, usually within a few hours. Working through multiple chapters? Order one check per document, or buy a check pack so each chapter costs less.

Turnaround speed and delivery

Every check is run manually rather than by an automated queue, which keeps quality high and means reports are normally emailed within a few hours of payment. You receive an order confirmation with a reference code immediately after checkout, so you always know your submission was received, and the report itself follows to the same email address.

If you are working to a tight deadline, submit as early as you can and use the email address you check most often. If a report has not arrived within a reasonable time, check your spam folder first, then reply to your confirmation email and we will follow it up.

Reading your thesis similarity score

Theses typically show higher similarity than short assignments because of their length, literature reviews, and reference lists — and many universities apply different expectations to them. Focus less on the raw number and more on what is matching: quoted and cited material is usually fine, while unattributed matches are what you need to fix.

Privacy and confidentiality

Your document is handled only as necessary to provide the checking service. We do not sell your document, share it with third parties for their own purposes, or use it for marketing. Files are reviewed manually by us for the sole purpose of producing your report, and can be deleted on request once your report has been delivered — just reply to your report email and ask.

Payment is processed securely by Stripe, so Plagiarism & AI Check never sees or stores your card details. You do not need an account to order a single check; if you buy a check pack, your credits are stored against your account and never expire.