Plagiarism Checker

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Compare text similarity and detect matching phrases

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About Plagiarism Checker

Plagiarism Checker helps you detect text similarity and identify matching phrases within your documents. Whether you are verifying original content, checking academic work, or ensuring authenticity, this tool compares text patterns and highlights potential matches instantly.

All processing happens directly in your browser with zero data uploads, keeping your content completely private and secure. Perfect for writers, educators, and professionals who need fast, reliable similarity detection without compromising confidentiality.

Local only

Privacy-safe

Instant

Real-time results

Unlimited

Checks per session

No logs

Zero tracking

How to use Plagiarism Checker

Paste Your Text

Enter or paste the content you want to check in the main text area.

Add Reference Sources

Provide one or more comparison texts to check against for similarity matches.

Review & Export Results

View highlighted matches, similarity scores, and download your detailed report.

Pro Tips

Adjust sensitivity settings lower for stricter matching and higher to catch paraphrased content variations.
Compare against multiple reference sources simultaneously to get a comprehensive plagiarism overview.
Use the case-insensitive mode when checking for conceptual similarity across different writing styles.
Export results with timestamps for documentation and record-keeping purposes.