Plagium vs WINNOWR
Plagium
plagium.comWINNOWR
github.comSide by side
| Figure | Plagium | WINNOWR |
|---|---|---|
| Price from | $19.98/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 9 | 0 |
| Spec score · Plagiarism Detection Software | 8.9 (#8) | 6.7 (#27) |
| Company history | Plagium says it was founded in 2006 and that millions of users check documents and academic articles each year. | Longsight says Sam Ottenhoff and Scott Siddall founded the company in 2004. |
| Integrations | Plagium lists Google Drive integration and a Google Docs Add-on for analyzing documents. | The production-style runtime uses SQLite, Cloudflare Queues, and Cloudflare R2. |
| Reports | Reports can include highlighted passages, matched sources, a similarity verdict, PDF export and a read-only share link. | Reports include index overlap, source URLs, and highlighted suspicious spans. |
Plans
Plagium
- FreeFree
- Free accountFree
- Single document$2, paid once
- Credit packages$7.95, paid once
- Unlimited$19.98 a month
- Institutional$1,200 a year
- InstitutionsPriced on request
- Monthly planPrice not published
- Prepaid planPrice not published
In their own words
Plagium
Plagium analyzes text for similarity with other material and offers a separate tool for identifying patterns compatible with AI-generated writing. Its plagiarism service compares submitted text with an online database and reports similarities with links to original sources. The AI Detector uses statistical and probabilistic analysis of writing patterns. Deep Search accepts Microsoft Word, PDF, and native text files; Google Drive integration and a Google Docs add-on support document analysis. Institutional users can access an API, while business solutions can integrate with corporate CRM, ERP, and document-management systems. Plagium presents solutions for educational institutions, publishers, editors, companies, researchers, and compliance teams. The free account costs nothing and allows five daily searches with a 4,000-character limit, but excludes Deep Search and API access. Plagium says submitted content remains owned by the user and is processed for analysis, report generation, and service improvement. Reports are automated estimates rather than definitive proof, and private, unpublished, or non-indexed material may not be detected.