Plagiarism Checker
Detect duplicate content and common phrases — no word limit, downloadable report.
How to check your content
- Paste or type your text into the box above — there is no word limit.
- Click Check Plagiarism to run the analysis.
- Review the results: see your Plagiarized % vs. Unique %, with Exact Match and Partial Match breakdowns.
- Read the highlighted content analysis to identify specific flagged and suspected sentences.
- Click Download Report to save a full PDF summary.
What the metrics mean
- Exact Match — sentences that contain well-known stock phrases, academic clichés, or widely-used expressions found verbatim across countless published works.
- Partial Match — sentences that share multiple common structural patterns with frequently published text. These are suspected but not confirmed duplicates.
- Unique — sentences that do not match any detected patterns and are treated as original content.
- Plagiarized % — the combined share of Exact Match and Partial Match sentences relative to your total sentence count.
What is plagiarism and why does it matter?
Plagiarism is the use of someone else’s words, ideas, or expressions without proper attribution. It can take the form of exact copying, paraphrasing without credit, or heavy reliance on stock phrases that make content appear derivative. For students, plagiarism can result in academic penalties. For bloggers and content creators, duplicate or over-templated content is penalised by search engines — Google actively demotes pages that offer little original value.
Running a plagiarism check before publishing helps you catch unintentional copying, identify over-used phrases, and ensure your content is genuinely original. Original writing builds trust, improves search rankings, and delivers more value to readers.
Frequently asked questions
Is my text sent to a server?
No. All analysis runs entirely in your browser using a local phrase-matching algorithm. Nothing is uploaded, transmitted, or stored. Your content stays on your device.
Is there a word limit?
No. Because processing happens locally in your browser, there is no server-side word limit. You can paste essays, articles, or long-form reports of any length.
What does the downloaded report contain?
The PDF report includes a document summary (word and sentence count), the full similarity metrics (Plagiarized %, Exact Match %, Partial Match %, Unique %), and a numbered list of every flagged and suspected sentence.
How accurate is the checker?
This tool uses a curated database of commonly-used phrases and structural patterns to flag potential duplication. It is designed as a writing-quality aid — sentences flagged as “Exact Match” contain well-known stock expressions that appear across many sources. For academic submission or legal purposes, always cross-check with an institutional tool.
What is the difference between Exact Match and Partial Match?
Exact Match means a sentence contains a phrase that appears verbatim in a wide range of published content — for example “in conclusion” or “studies have shown that”. Partial Match means a sentence uses two or more common structural patterns that are frequently seen in published writing, suggesting it may be templated or paraphrased rather than fully original.
How can I reduce my plagiarism score?
Replace stock phrases with your own phrasing, cite sources where you quote or closely paraphrase, and focus on adding original analysis or insight rather than restating widely-known facts. Even small edits — replacing “in conclusion” with a specific closing statement — can shift a sentence from flagged to unique.
