Dupli Checker
Plagiarism checker - 100% Accurate, free & Trustworthy·duplichecker.com
Dupli Checker (DupliChecker.com) is an online plagiarism detection tool that scans text, uploaded documents, and web content for duplicate or copied material and returns percentage-based originality reports. It also offers AI-based content detection, grammar checking, paraphrasing, and reverse image search among its suite of free SEO and text-analysis tools. Users can paste text or upload files in several formats, and the service supports multiple languages. Paid plans add higher word/search limits, more user seats, and API access.
What it's for
Features 19
- Academic Scan mode (Pro)
- AI content detection
- AI Detection Fingerprint (Pro)
- AI-based plagiarism detection technology
- Color-coded duplication highlighting
- Custom PDF plagiarism reports
- Deep Scan mode (Pro)
- Exclude Bibliography option (Pro)
- Exclude Quotes option (Pro)
- Fast and deep scanning
- Grammar checking
- Multilingual plagiarism detection (up to 7 languages)
- Multiple file format support (.tex, .txt, .doc, .docx, .odt, .pdf, .rtf)
- Paraphrasing Tool
- Percentage-based plagiarism/originality results
- Privacy guarantee - uploaded content is not saved
- Reverse Image Search tool
- Scan up to 25,000 words per search
- URL checking
At a glance
No company, integrations, or compliance data published yet.
Pricing
The pricing page lists a large number of tiered subscription plans (named Basic II-X, Pro I-X, Institute I-X, Enterprise I-X) each billable weekly, monthly, or yearly with different search counts, word limits, user seats, and API availability. Only a representative sample of the monthly tiers is captured above; many intermediate tiers with prices between $5/week and $200/month (and up to at least $950/year) exist on the page.
Core plagiarism checker usable without payment or registration, per the site's own description.
Scan up to 25,000 words per search, no ads-free version noted separately
Simplified upgrade offer shown in a popup: $15/Month, or $10/Month billed yearly.
Lowest paid monthly tier shown in the pricing table.
Searches 67, 100; Total Words 20,000, 30,000; User Seats 0; API unavailable
Searches 500, 700; Total Words 150,000, 210,000; User Seats 4; API available
Searches 1,000, 2,000; Total Words 300,000, 600,000; User Seats 9; API available
Searches 1,500, 3,000; Total Words 450,000, 900,000; User Seats 14; API available
Highest monthly-billed tier shown.
Searches 2,000, 4,000; Total Words 600,000, 1,200,000; User Seats 20; API available