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Text Overlap Checker
Compare two plain-text inputs and highlight overlapping words or phrases quickly.
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What is Text Overlap Checker?
Text Overlap Checker compares two passages and highlights shared words or phrases to detect similarity quickly. It is useful for paraphrasing checks, draft comparison, and plagiarism-risk review before submission.
Both text inputs are compared entirely in-browser; no content is uploaded.
How to use Text Overlap Checker
- 1Paste original text in the first input box.
- 2Paste the second text or revised draft in the other box.
- 3Run the overlap analysis to see common segments.
- 4Edit repeated sections and recheck until similarity is acceptable.
Examples
Draft comparison
Overlap highlights 'Machine learning improves' and 'accuracy'.
Text A: 'Machine learning improves prediction accuracy.' Text B: 'Machine learning improves forecasting accuracy in finance.'
Paraphrase quality
High overlap score indicates more rewriting is needed to reduce copied phrasing.
Tips & common mistakes
- Do not rely only on percentage; review highlighted phrases for context and citation needs.
- Common technical terms may appear as overlap even in original writing.
- Use after paraphrasing to catch accidental sentence-level similarity.
Who uses this tool?
- Students checking assignment rewrites before final submission.
- Blog editors comparing article versions during revision cycles.
- Research assistants reviewing summary drafts against source notes.
Frequently asked questions
- Is text overlap checker the same as plagiarism detection?
- Not exactly. It compares two provided texts directly, while plagiarism tools often search against web and database sources.
- Can I compare long essays?
- Yes, but very large inputs may take longer depending on browser memory and device performance.
- Why is overlap high even after rewriting?
- Shared domain terms and repeated structure can still produce overlap. Focus on unique phrasing and proper citations.
- Does punctuation affect overlap results?
- Most comparisons normalize punctuation and case to detect meaningful textual similarity more reliably.
- Can teachers use this for assignment audits?
- Yes. It is useful for quickly comparing suspicious passages or multiple draft versions from the same student.