StrikePlagiarism is an academic-integrity system that checks text similarity, paraphrasing and AI-generated content. It searches open internet sources, university databases and publisher repositories. Its interactive report shows similarity coefficients, source breakdowns, paraphrasing detection, citation tracking and manipulation alerts. An integrated AI module gives fragment-level probability analysis; the functionality page states 98% or higher detection accuracy, fewer than 1% false positives and support for more than 100 languages. Translated-text search also covers more than 100 languages, while grammar checking supports over 30 languages with correction hints and categorized errors. Integrations include Moodle, Canvas, Blackboard, Brightspace, Schoology, OJS, Google Classroom and Microsoft Teams, plus API, LTI 1.3, LDAP and SSO options. Institutional installations can use a client database. Individual documents and reports are not stored, but individual accounts cannot check university databases or connect LMS and API integrations.
Who it is for
It suits schools, universities, publishers and other organisations checking originality, paraphrasing or AI-generated writing. Individual users can purchase tokens, while institutional accounts provide broader integrations and database access.
What is good
- Similarity, paraphrasing and AI-content checks
- Searches internet, university and publisher sources
- Reports include citation and manipulation indicators
- Integrations with major learning platforms
- API and self-hosted deployment options
What to know first
- Paid service with no free plan
- Individual accounts cannot check university databases
- Individual accounts lack LMS and API connections
- Token plan checks 18,000 characters each
Verdict
StrikePlagiarism combines similarity checking, AI analysis, translated matching and grammar tools. Institutional and individual accounts differ substantially in repository access and integrations, so the suitable setup depends on how documents are managed.
StrikePlagiarism plans and pricing
All plansCompared on plagiarism checkers
- Free plan
- No
- API access
- Yes
