What does "repository" mean in plagiarism checking?
A repository is a database of student submissions that plagiarism tools like Turnitin use to check for matching content between students. When a university submits your thesis through their institutional account, your paper enters this global repository permanently. Every thesis submitted anywhere in the world after yours can now be matched against your content.
For students wanting a pre-submission check, this creates a serious problem: if you check through your own university's system, each draft you submit becomes a permanent record. When you submit your corrected final version, the system may show your own earlier drafts as a "matching source" and inflate your similarity score.
Why Indian students specifically need non-repository checks
Under UGC Regulations 2018 on Promotion of Academic Integrity, every PhD, M.Phil., and research thesis must be checked for plagiarism before submission. This has created a large demand for pre-submission checks — students want to see their score, reduce matched content, and resubmit a clean version before the official institutional check.
If you run this pre-submission check through your university's Turnitin portal, your draft is indexed permanently. When you later submit the corrected version, the tool may flag your own draft as a matching source. A non-repository check avoids this entirely — scan as many drafts as you need, none of them are indexed.
| Feature | University Check | PlagExpert |
|---|---|---|
| Document indexed? | Yes — permanently | No — deleted after |
| Can recheck drafts? | Each check creates a record | Check as many times as needed |
| Similarity score accuracy | Institutional database | Same sources, no indexing |
| AI detection included? | Depends on plan | Yes, included |
| Report delivery | Variable | 10–30 minutes |
| Price | Free via university | From ₹99 |
How non-repository checking works at PlagExpert
- 1Choose your plan and complete payment on WhatsApp
- 2Receive a secure portal link or guest upload link
- 3Upload your document through the secure portal
- 4The system scans against journals, websites, and indexed student papers
- 5Your PDF report (similarity + AI detection) is generated and delivered
- 6Your document is permanently deleted — nothing is stored or indexed
Is non-repository checking legitimate?
Yes. Non-repository plagiarism checks are widely used for pre-submission review by PhD scholars, M.Phil. students, and research scholars across India. Many supervisors recommend checking externally first before the official submission required under UGC Regulations 2018. PlagExpert provides non-repository reports for students at IIT Madras, Anna University, VTU, Amity University, SRM, VIT Vellore, Manipal, JNTU, Osmania University, BITS Pilani, and hundreds of other colleges across India. Reports start at ₹99 for a single check, with delivery in 10–30 minutes.
Ready to check your thesis without repository risk?