Plagiarism Checker
Plagiarism Checker — write original, with confidence.
Estimate originality and spot phrasing that may need a citation. Run a free preview here; full source-matched scans need a free account.
Your text
Not scanned
Estimated originality
Potential matches
example-source.edu
matched phrase preview
en.wikipedia.org
matched phrase preview
AI-powered preview — please review results before use.
How the plagiarism checker works
1
Paste your text
Add the draft you want to check for originality.
2
Scan preview
Get an originality estimate and see phrasing that may need a citation.
3
Run a full scan
Create a free account to match against real sources with links.
More writing tools
One toolkit instead of ten tabs — every Phrasera tool is free to try, no signup required.
Paraphraser
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Open Paraphraser →Grammar Checker
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Open Grammar Checker →Summarizer
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Open Summarizer →AI Detector
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APA, MLA, Chicago & more
Open Citation Generator →Translator
Natural, fluent translation
Open Translator →Word Counter
Words, characters, reading time
Open Word Counter →AI Humanizer
Make AI text sound human
Open AI Humanizer →Plagiarism Checker FAQ
The originality preview is free; full source-matched scans require a free account, with higher limits on Premium. We're upfront about this so you know exactly what each tier includes.
The preview estimates originality by flagging generic or commonly-reused phrasing in your text. A full scan compares your text against web and academic sources for exact and near matches.
Yes — originality previews work in 25+ languages, including Bahasa Indonesia. Source coverage is broadest in widely-published languages.
Paraphrasing changes wording, but ideas still need to be credited to their source. Originality is about attribution, not just rephrasing — always cite where ideas come from.