Noplag vs Smodin Plagiarism Checker
Noplag
noplag.com
Smodin Plagiarism Checker
smodin.ioSide by side
| Figure | Noplag | Smodin Plagiarism Checker |
|---|---|---|
| Price from | $9.99/mo | $10/mo |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 4 |
| Spec score · Plagiarism Checkers | 9.2 (#3) | 7.4 (#24) |
| Integrations | The features page lists Canvas, Moodle, Blackboard, and Brightspace integrations via LTI 1.3. | Smodin offers a plagiarism and auto-citation API with pay-as-you-go pricing and documentation. |
| Security | Noplag says it encrypts data in transit and at rest and does not yet hold formal attestations such as SOC 2. | Smodin says it uses security measures and technologies to protect information from unauthorized disclosure, access, or use, while noting that internet security cannot be guaranteed at 100%. |
| Support | Free includes community Discord support, Pro includes email support, and Premium includes priority support with a 12-hour response target. | Smodin lists support by email and phone, and its help center asks users to include a screenshot and login email when requesting help. |
Plans
Smodin Plagiarism Checker
- Starter$10 a month
- Premium$16 a month
- Starter$10 a month
- Premium$16 a month
In their own words
Noplag
Noplag is an open-source plagiarism checker with a hosted cloud service and an engine released under Apache 2.0. Its current matching uses winnowing fingerprints and live-web comparison to find verbatim and near-verbatim copying; it does not detect paraphrase. Sources include the open web, Common Crawl, Wikipedia, academic indexes, the Noplag Database and users’ own folders. Submit DOCX, PDF, TXT, ODT or RTF files, paste text or provide a URL. Reports link matches to their sources, display similarity scores and exact overlapping text, and can be exported as PDFs. Detection is calibrated at launch for English, Spanish, Portuguese, Polish and Ukrainian. AI-content detection is marked as coming soon and intended as a separate signal. The free plan allows three checks per month, up to 2,500 words per check, with community Discord support. Pro costs $9.99 a month and includes 50 monthly checks, up to 25,000 words per check, database and academic-index matching, REST API and webhooks, and email support. A 14-day trial is listed.
Smodin Plagiarism Checker
Smodin Plagiarism Checker has no write-up on Specifiction yet; its figures are above.