Home » Collaboration & Productivity Software » Plagiarism Checker Software » Grammarly Plagiarism Checker
Grammarly Plagiarism Checker is an AI-driven tool that scans text against billions of web pages and academic databases to identify unoriginal content. Designed for students, educators, and professionals, it provides originality scores, citation suggestions, and integrated grammar feedback.
The plagiarism checker works seamlessly within Grammarly’s broader writing assistant, helping users maintain academic integrity while improving clarity, tone, and overall writing quality.
| Plan | Price | Featured |
|---|---|---|
| Free | $0/month | Basic grammar and spelling checks, tone detection, 100 AI prompts/month |
| Pro | $12/month (Billed Annually) / ~$30/month (Billed Monthly) | Plagiarism detection, AI-generated text detection, 2,000 AI prompts/member/month |
| Enterprise | Contact Sales (Custom Pricing) | Unlimited AI prompts, advanced security & BYOK encryption, dedicated support |
Price details: https://www.grammarly.com/plans
Competitor |
Pros |
|---|---|
| Turnitin | Grammarly is more accessible for individuals, offering a simple interface and affordable Pro pricing. It integrates plagiarism checks directly with grammar and style feedback, reducing the need to switch tools. Unlike Turnitin, it is easy to use outside institutional environments. |
| Copyscape | Compared to Copyscape’s pay-per-scan model, Grammarly provides unlimited checks within a subscription. It also adds grammar, tone, and AI writing support, making it a more comprehensive writing assistant rather than a standalone plagiarism scanner. |
| Quetext | Grammarly offers broader writing support beyond plagiarism, including real-time suggestions and AI detection. Its interface is cleaner and better suited for continuous writing workflows, while Quetext focuses more narrowly on similarity detection. |
| PlagScan | Grammarly is easier for non-academic users and integrates directly into browsers and editors. It provides instant feedback and citation help, whereas PlagScan is more document-based and less intuitive for everyday writing. |
| Originality.ai | Grammarly is more user-friendly for students and professionals, combining plagiarism and grammar tools in one platform. Originality.ai is more technical and SEO-focused, while Grammarly prioritizes clarity, usability, and writing improvement. |
Competitor |
Cons |
|---|---|
| Turnitin | Grammarly’s plagiarism detection is generally less rigorous than Turnitin’s academic database coverage. Universities often trust Turnitin more for formal submissions, while Grammarly is seen as a pre-check rather than an authoritative academic standard. |
| Copyscape | Copyscape can be more precise for web content duplication, especially for SEO use cases. Grammarly’s plagiarism checker is broader but sometimes flags common phrases, which may require additional manual review. |
| Quetext | Quetext provides clearer similarity breakdowns for matched sources. Grammarly’s reports are simpler and may feel less detailed for users who want granular analysis of overlapping text. |
| PlagScan | PlagScan offers more formal reporting options for institutions. Grammarly’s plagiarism reports are designed for writers, not compliance-heavy academic or legal documentation. |
| Originality.ai | Originality.ai can be stronger for detecting AI-generated content at scale. Grammarly’s AI detection is integrated but may be less specialized for publishers who need strict AI-authorship verification. |
