PlagiarismCheck.org
An online plagiarism check and originality detection service for teachers and students, which provides similarity percentages and traceable original text links, also offers AI detection capabilities, and supports integration with various mainstream teaching platforms.
Updated: 2026-10-26
What is PlagiarismCheck.org?
PlagiarismCheck.org is an online plagiarism and originality detection service. Its official website is positioned as a similarity detection tool for teachers and students. It also provides AI-generated content detection capabilities, with both features available through the same portal. It supports integration with various teaching platforms and covers different usage scenarios such as K-12, higher education, individual teachers, and enterprises.
Who is it for?
- University and K-12 teachers who need to check assignments in batches by class.
- Schools that already use platforms like Canvas and Moodle and want to integrate plagiarism checking into their assignment workflows.
- Editors who need to check the originality of submissions and external copy.
- Educational product teams that need to integrate plagiarism detection capabilities into their in-house systems.
- Corporate compliance personnel who need to check for duplicate usage in internal documents and external materials.
Key features
8Plagiarism Checker
Provides a similarity percentage and lists traceable source links of the original text.
AI Detector
An AI-generated content detection entry alongside plagiarism checking.
Teaching Platform Integration
The official website lists Canvas, Moodle, Google Classroom, Schoology, Brightspace, Blackboard, Populi, as well as Google Docs plugins.
Scenario-specific solutions
Different versions for K-12, higher education, teachers and enterprises.
Personal Tools
The official website provides additional tools such as grammar checking, citation generation, essay scoring, and topic generation.
Plagiarism check API
A plagiarism detection interface for integration with in-house systems.
Source Links
The official website states that for all matched sources, the corresponding links can be easily found.
Extensive Text Database
The official website states that it provides a wide range of text databases for comparison and displays the similarity percentage.
How to use PlagiarismCheck.org
- 1First confirm whether the school has purchased or connected to the teaching platform; using the platform's built-in entry point is more convenient than pasting separately.
- 2The similarity percentage should be viewed in conjunction with the citation format, as references and commonly used terms will increase the value.
- 3The official website states that it can prevent ghostwriting, but the test results still require manual review and should not be directly used as the basis for punishment.
- 4When accessing via API, pay attention to the pay-as-you-go pricing and data retention policies.
- 5Before students submit their work for self-check, they should first find out which plagiarism checker reports are recognized by their school.
- 6The official website provides separate solutions for K-12, higher education and enterprises. Choose the right version first before comparing prices.
- 7Individual users can first try out the free text box, and consider a subscription or API when their usage volume increases.
Traffic & popularity
Data month Sep 2026
PlagiarismCheck.org receives about 102.6K visits per month and ranks #448,215 worldwide.
Monthly visits
12 monthsTraffic sources
- Search52.4%
- Direct35.4%
- Referrals7.4%
- Mail3.9%
- Social0.8%
Top countries
- South Africa40.6%
- United States17.6%
- India6.6%
- Peru3.6%
- Colombia3.0%
Estimated from third-party traffic data.
Similar tools
PlagiarismSearchPlagiarismSearch is an online plagiarism and AI detection service that outputs similarity rates and matching sources, while also providing paper analysis, readability checks, and spell checks. Its official website states that it supports APIs and instant messaging robots.
TurnitinAn academic integrity platform for educational institutions, officially claiming cooperation with more than 16,000 institutions worldwide; AI writing detection is provided as an additional feature of Similarity Report and is only visible to teachers and administrators.PaperPassA plagiarism and AIGC detection platform for Chinese academic writing (operated by Zhishu Shuhui) offers free plagiarism check, intelligent similarity reduction, AIGC reduction, format detection and self-built database. The report supports sentence-by-sentence annotation and source traceability.
Weipu AIGC DetectionThe Weipu Paper Detection System provides plagiarism check, format checking, AIGC detection and intelligent evaluation services, which are distinguished by versions for college students, postgraduates, editorial departments and professional titles, and supports unified management of personal versions and institutional versions.
NoPlagioNoPlagio is a plagiarism and AI detection tool for Italian-speaking users. Its official website states that it supports plagiarism check for 129 languages and their translations, and marks rewrites, citations and similar fragments with different colors.
CopyFindCopyFind is a free online plagiarism and AI content detection tool. You can paste text or upload documents to compare web page duplicates and rewrite traces. The official website states that uploaded files are not saved, and it supports comparison with target websites.