Side by side
Ahrefs Plagiarism Checker vs Duplichecker
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Scan your content for plagiarism instantly.
Detect copied content instantly and for free.
Primary task
Plagiarism detection
Plagiarism detection
Pricing
Free
Freemium · Free + from $10/mo
Pricing details
Free
Free + from $10/mo
Billing cycle
Not documented
Monthly
API access
Not documented
Not documented
Platforms
Web
Web
Integrations
Not documented
Make
Source rating
3.5 / 5 · 2 ratings
5.0 / 5 · 2 ratings
Catalog views
578
4.9k
Estimated monthly traffic
—
11.4M
Catalog imported
30 Aug 2026
29 Aug 2026
Listed strengths
- Detailed originality report
- Enhances content credibility
- Minimizes copyright infringements
- Suitable for content creators
- Helpful for academic institutions
No pros listed yet
Listed limitations
- Limited to TXT files
- Upload size cap 10MB
- No real-time checking
- No multi-language support
- Unspecified database size
No limitations recorded; this does not mean none exist.