- Plagiarism Detection: Compares text against a large online database to identify similarities and potential content reuse.
- AI Content Detection: Analyzes text patterns to estimate whether content may be AI-generated.
- Permanent Reports: Generates shareable reports that remain accessible for future reference.
- Certificate of Authenticity: Provides documentation to support originality claims.
- Secure Data Handling: Ensures uploaded documents are processed with data security protections.
Plagium Free Plagiarism checker
Free plagiarism and AI detection tool for academic and professional content
Updated August 11, 2026
Plagium Free Plagiarism checker Overview
Plagium checks text and documents for matching online material and can create reports that users can revisit or share. It also includes recurring searches, AI-detection tools, and workflows for people who check content regularly.
The service can help find possible reuse, but its similarity and AI signals are not proof that a document is original or human-written. Users still need to inspect the matched sources.
Key Features
Pricing
| Plan | Price | What is included |
|---|---|---|
| Free searches | $0 | 10 searches a day, up to 4,000 characters each |
| 25 pages/month | $6.99/month | Permanent reports and recurring searches |
| 50 pages/month | $11.99/month | Permanent reports and recurring searches |
| 100 pages/month | $22.99/month | Permanent reports and recurring searches |
| 250 or 500 pages/month | $54.99 or $104.99/month | Higher monthly page allowances |
Pricing source: official pricing page.
Pros
Compared with |
Why this product may fit better |
|---|---|
| Copyscape | Plagium has a free daily allowance and low monthly page plans. Copyscape charges per Premium search, so Plagium can be easier to budget for regular small checks. |
| Quetext | Plagium supports Quick, Deep and file-based searches and can keep permanent reports. Quetext has a broader writing suite, while Plagium stays closer to search and source comparison. |
| Plagiarism Checker X | Plagium works in a browser and offers a Google Docs route. Plagiarism Checker X is a Windows application, so Plagium is easier to reach from different devices. |
Cons
Compared with |
Where this product may fall short |
|---|---|
| Copyscape | Copyscape has web monitoring and an established publishing API. Plagium offers useful searches, but independent tests report weaker Quick Search results. |
| Quetext | Quetext has more user reviews and a clearer student writing workflow. Plagium's public review samples are tiny, which makes service quality harder to judge. |
| Plagiarism Checker X | Plagiarism Checker X provides local document comparison and one-time licenses. Plagium requires a recurring plan for regular higher-volume use and keeps work in a web service. |
Reviews
- NoCramming review: The test found Quick Search poor at identifying copied web text and says Deep Search was slower and less sensitive than stronger academic tools. It still notes Plagium's low entry price and combined plagiarism and AI checks. Trustpilot and GetApp scores were left out because each had fewer than five reviews.
