💡 Pick it for institution-wide academic integrity workflows and deeper scholarly-source coverage.
Turnitin is a plagiarism detection software used by educators and students to prevent plagiarism and ensure academic integrity.
Contact for pricing
Best Grammarly Plagiarism Checker Alternatives ranked by AI · updated Aug 2026
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Grammarly Plagiarism Checker scans writing against online sources and academic databases to identify potentially unoriginal passages. It is designed for students, professionals, and content creators who want plagiarism detection integrated with grammar and style suggestions.
Developer: Grammarly
Price: Included with Grammarly Pro, from $12/mo billed annually
🎯 grammarly.com/plagiarism-checker
Top 6 Grammarly Plagiarism Checker alternatives
💡 Pick it for a thesis or research paper that needs a more academic report and optional expert proofreading.
Scribbr provides academic proofreading, citation checking, plagiarism checking, and writing resources for students and researchers. Its main strength is improving a student's...
Pros
- Stronger proofreading and citation support than Write Any Papers
- Useful for improving a student's existing academic draft
- Provides academic writing guides and citation tools
Cons
- Less suitable when a user needs a complete custom paper
- Human proofreading costs more than basic grammar checkers
- Does not provide the same writer marketplace model as EssayPro
From $19.95
3
Copyleaks
Copyleaks
💡 Pick it when you need multilingual checking, integrations, or scalable plagiarism detection for an organization.
Copyleaks is an enterprise content-integrity platform offering AI detection, plagiarism checking, and code analysis. It serves schools, businesses, and developers through web...
Pros
- Broad integration support for LMS platforms and business systems
- Combines plagiarism, AI, and source-code analysis in one platform
- Supports many languages and large-scale organizational workflows
Cons
- Enterprise features and API usage can be costly
- The product is more complex than a basic paste-and-scan detector
- Individual users may find the interface and plans excessive
Freemium, paid plans from $16.99/mo
4
Originality.ai
Originality.ai
💡 Pick it for editorial teams that need plagiarism checks alongside AI-content and publishing-quality controls.
Originality.ai combines AI-content detection, plagiarism checking, and editorial quality tools for publishers, agencies, and content teams. Its standout capabilities include batch scanning,...
Pros
- Well suited to publishers and agencies managing many content submissions
- Combines AI detection with plagiarism and readability checks
- Provides shareable reports and team collaboration features
Cons
- More expensive than consumer-focused detectors
- Less suitable for students seeking a simple free checker
- AI scores can vary substantially with edited or non-native writing
From $14.95/mo or pay-as-you-go
💡 Pick it for an affordable, focused plagiarism check with a limited free option and citation help.
Quetext is a plagiarism checker for students, teachers, writers, and marketers. It combines source matching with a citation assistant and an explainable...
Pros
- More approachable reporting than many academic-focused checkers
- Includes citation assistance alongside similarity results
- Has a free tier for short checks
Cons
- Free scans are limited by word count
- Source coverage is narrower than institutional databases
- Less capable than Grammarly for general writing improvement
Freemium, Pro from $9.99/mo
💡 Pick it for pay-as-you-go checks of published webpages, SEO articles, and other online content.
Copyscape is a plagiarism detection software that allows users to check for duplicate content online.
Varies based on usage
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