Plag.ai
Plag.ai: A strong multilingual checker with translated-match detection, reports, and academic analysis. Ranked #14 of 28 in Plagiarism Detection Software by our editors (7.7/10); pricing: Free plan; best for multilingual users needing translated-match detection.
At a glance
- Editor score7.7 / 10
- PricingFree plan
- Best forMultilingual users needing translated-match detection
- Free planYes
- Paid from€14.95/mo
- AI detectionYes
- Founded2011
- Facts checked21 Sep 2026
Where it wins
- Checks plagiarism, paraphrasing, citations, and AI-generated text
- Supports plagiarism detection across 129 languages
- Provides source links and downloadable PDF reports
Where it doesn't
- Web-only access limits platform integration options
- No verified LMS, API, or browser integrations
- PRO Unlimited costs €299.95 per month
Our verdict on Plag.ai
Plag.ai is a web-based plagiarism detection platform for students, educators, universities, and professionals. It checks documents for copied, paraphrased, improperly cited, and translated content, while also identifying AI-generated text. Results include similarity and plagiarism-risk scores, citation analysis, links to matching sources, and downloadable PDF reports. Support for 129 languages and uploads in formats such as DOC, DOCX, ODT, PAGES, and RTF make it suited to multilingual academic and professional writing.
Pricing is structured as freemium with several monthly tiers. The Basic plan costs €14.95 per month and includes plagiarism checking, AI detection, cross-language translated plagiarism, academic articles, in-depth analysis, and basic and priority support. Student costs €29.95 per month with the same listed highlights. PRO Unlimited costs €299.95 per month and adds unlimited monthly usage alongside plagiarism checking, AI detection, translated-match detection, academic articles, and in-depth analysis. Educators are specifically offered free premium access, while optional plagiarism-removal and editing services extend beyond detection.
Its strongest distinction is the combination of translated-match detection, broad language coverage, citation and improper-citation identification, source links, and PDF reporting. That makes it a practical choice for multilingual educators, students, and professional reviewers who need more than a basic similarity scan. Plag.ai is available on the web, but it does not provide verified LMS, API, or browser integrations. Organizations that need embedded workflows or broader platform connectivity should choose an alternative with those integrations; users focused on multilingual document analysis can choose Plag.ai.
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Plag.ai pricing
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Plag.ai fact sheet
| Free plan | Yes |
|---|---|
| Paid from | €14.95/mo |
| AI detection | Yes |
| LMS integrations | Not verified |
| API access | Not verified |
| Browser extension | Not verified |
| Supported languages | 129 languages |
| Maximum check size | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | GDPR |
| Support | Live chat · 24/7 |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan (source) |
| Website | plag.ai |
| Facts checked | 21 Sep 2026 |
Alternatives to Plag.ai
- Turnitin SimilarityA comprehensive academic similarity checker with LMS workflows and advanced match flags.9.3
- DrillBitBroad academic and classroom checks with one-time page-credit pricing.9.1
- iThenticateA scholarly similarity checker with deep academic coverage and flexible organizational integrations.8.9
See all Plag.ai alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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