PlagiarismCheck.org
PlagiarismCheck.org checks text originality, verifies authorship, detects AI-generated content, and provides writing checks.
What PlagiarismCheck.org is
PlagiarismCheck.org checks text originality, verifies authorship, detects AI-generated content, and provides writing checks. The browser-based service requires no installation and allows users to check two pages for free. Its checker looks for exact matches as well as substitutions and changes to word order or sentence structure. Results are interactive, and reports can be downloaded as PDFs. Listed integrations include Moodle, Google Classroom, Canvas, Blackboard, and a Google Docs add-on. The company says uploaded writing remains confidential and is not kept in its database. Institutional plans are aimed at K-12 schools, higher-education and research institutions, and businesses. Higher-education customers get grammar, spelling, and punctuation checking alongside AI detection and authorship verification. The API supports English text only, and submitted text must be at least 80 characters. The site claims 99% accuracy for detecting even slight signs of AI. Paid page bundles are one-time purchases: Basic is 5.99 USD for 20 pages, while Light costs 9.99 USD, Standard 25.49 USD, and Premium 45.49 USD. Institutional plans are available by quote.
Good
- Two pages can be checked for free.
- Provides interactive results and downloadable PDF reports.
- Integrates with several learning platforms.
- Browser-based access requires no installation.
- Institutional plans include academic writing features.
Watch out
- The API supports English text only.
- API submissions must be at least 80 characters.
- Paid page bundles are one-time purchases.
- Institutional pricing is available by quote.
Who it suits
PlagiarismCheck.org suits individuals who need occasional text checks and institutions seeking originality, authorship, or AI detection features. Its listed integrations may be useful to organizations using supported learning platforms.
Verdict
PlagiarismCheck.org combines originality checks with authorship and AI-detection features. Its free allowance and institutional options differ, so consider whether the page bundles or quote-based plans fit your use.
Plans and prices
From PlagiarismCheck.org's own pricing page, checked 1 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Basic | $5.99, paid once | 20 pages · No monthly fees; pay for checked pages |
| Light | $9.99, paid once | No monthly fees; pay for checked pages |
| Standard | $25.49, paid once | No monthly fees; pay for checked pages |
| Premium | $45.49, paid once | No monthly fees; pay for checked pages |
| Advanced | Priced on request | Institutional web-based account · public-resource searching · Google Classroom, Moodle and Canvas integration · personal institutional archive · Google Docs add-on · 99.99% uptime · Fingerprint authorship verification · grammar checker · closed-depository and library searching · VIP support · custom features · Request quote |
| Pro | Priced on request | Institutional web-based account · public-resource searching · Google Classroom, Moodle and Canvas integration · personal institutional archive · Google Docs add-on · 99.99% uptime · Fingerprint authorship verification · grammar checker · closed-depository and library searching · VIP support · custom features · Request quote |
The facts
Each one read from PlagiarismCheck.org's own pages, with the date it was checked.
What it does
- Academic features
- Higher-education customers get grammar, spelling and punctuation checking, AI detection and authorship verification.checked 1 Oct 2026
- AI detection
- The site claims 99% accuracy in detecting even slight signs of AI.checked 1 Oct 2026
- API limit
- The API currently supports only English text and requires submitted text to be at least 80 characters.checked 1 Oct 2026
- Core purpose
- The service checks text originality, verifies authorship, detects AI-generated content and helps improve writing.checked 1 Oct 2026
- Data handling
- The company says it does not keep uploaded writings in its database and that uploaded texts remain confidential.checked 1 Oct 2026
- Detection capabilities
- The checker detects exact matches, substitutions and rearrangements in word order and sentence structure.checked 1 Oct 2026
- Institutional users
- Organizational plans target K-12 schools, higher-education institutions, research institutions and businesses.checked 1 Oct 2026
- Integrations
- Listed integrations include Moodle, Google Classroom, Canvas, Blackboard and a Google Docs add-on.checked 1 Oct 2026
- Reports
- The product provides interactive results and downloadable reports.checked 1 Oct 2026
- Support
- The company lists support by email and a 24/7 phone number.checked 1 Oct 2026
- Usage reach
- The homepage reports more than 1,000,000 users and more than 21,000,000 texts checked for plagiarism.checked 1 Oct 2026
Where it runs
- Browser access
- PlagiarismCheck.org is browser-based and requires no installation.checked 1 Oct 2026
The company
- Company history
- PlagiarismCheck.org says it was created in 2011 as an assistance tool for college students and teachers.checked 1 Oct 2026
- Founded
- 2011checked 28 Sep 2026
Money
- Free checking
- Users can check 2 pages for free.checked 1 Oct 2026
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