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Plagiarism Checker

Check any text for plagiarism and get an originality score instantly. Identifies potentially copied phrases, common content and similarity patterns.

⚡ Setup required: Open js/main.js and replace YOUR_OPENAI_API_KEY with your key from platform.openai.com

Plagiarism Checker

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Originality

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Original Content

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Similar Phrases

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Words Checked

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Risk Level

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ℹ️ How this works: Our AI analyses your text for common phrases, repetitive patterns and content that appears frequently across the web. This provides an originality estimate. For academic submission, we recommend also using your institution's approved plagiarism tool. Pro users get enhanced checking with 30 checks/day.