DupliChecker

DupliChecker is ranked #12 of 31 in plagiarism checkers on The Geeks Club. It runs on API, Web. Paid plans start at $9.99/mo.

DupliChecker plans and pricing

All plans

Basic II $9.99/mo $9.99 /Month 100 searches · 30,000 total words · 0 user seats · API unavailable duplichecker.com · 4 Oct 2026

Basic IV $19.99/mo $19.99 /Month 240 searches · 72,000 total words · 2 user seats · API available duplichecker.com · 4 Oct 2026

Pro X $100/mo $100.00 /Month 2,000 searches · 600,000 total words · 9 user seats · API available duplichecker.com · 4 Oct 2026

Compared on plagiarism checkers

Free plan: Yes
API access: Yes

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DupliChecker

Plagiarism checking: The site offers an online plagiarism checker for assessing the originality of text.
AI detector: The AI content detector accepts pasted text or uploaded files and displays human and AI content percentage scores.
AI detector access: The AI detector page says it is free to use without signup or credits.
Upload sources: The AI detector page shows upload options for a device, Google Drive, and Dropbox.
Detection methods: The AI detector says it uses NLP, machine learning comparison, and syntax and semantic analysis.
Checker plan limits: The pricing page lists paid plagiarism-checker plans with search, total word, user-seat, and API availability limits.
Premium features: The pricing page lists full data encryption, URL checking, downloadable PDF reports, multiple-file uploads, citation and URL exclusion, and up to 25,000 words per search among plan benefits.
Premium support: The pricing page says premium users and institutions get support with using the deep plagiarism checker, interpreting reports, and technical issues.
Privacy and data sale: The privacy policy says DupliChecker does not sell or rent personal data.
User content review: The privacy policy says employees do not monitor all uploaded or transmitted user content, though it may be viewed in specified circumstances such as support requests or legal obligations.
Data retention: The privacy policy says premium subscriber data is stored in personal site accounts and may be automatically deleted after the user unsubscribes.
Audience: The about page describes the service as online SEO and text analysis tools intended to make SEO and content marketing tools accessible worldwide.
Founded: 2006
Price from: $9.99/mo

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Where it ranks on The Geeks Club

Best Plagiarism Checkers in 2026#12 of 31
Best AI Reverse Image Search Tools in 2026#11 of 31
Best Plagiarism Detection Software in 2026#15 of 28
Best AI Plagiarism Checkers in 2026#12 of 26

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Sources

duplichecker.com· checked 4 Oct 2026
duplichecker.com/ai-content-detector.php· checked 4 Oct 2026
duplichecker.com/pricing· checked 4 Oct 2026
duplichecker.com/privacy-policy· checked 4 Oct 2026
duplichecker.com/about-us· checked 4 Oct 2026