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Cole (Ctrl + V) o seu artigo abaixo e clique em Check for Plagiarism!
You wrote something and you want to make sure it does not accidentally match content that already exists online. This Plagiarism Checker scans your text against published sources and highlights any sections that appear elsewhere. It is for students submitting assignments, writers submitting work to clients, bloggers publishing posts, educators reviewing student papers, and anyone who needs to verify originality before putting content in front of an audience.
Paste your text, run the scan, and get a report showing which parts match other sources and where those sources are. You can then rewrite flagged sections, add citations, or confirm that the matches are acceptable.
Plagiarism is using someone else's words or ideas without giving them credit. It can happen intentionally, but it also happens by accident. You read something months ago, internalized it, and later wrote it down thinking it was your own thought. Or you wrote a passage that happens to resemble something another writer published on the same topic. The checker catches both cases.
For students, the stakes are academic penalties, from a failing grade on an assignment to more serious disciplinary action. For professional writers and bloggers, duplicate content can hurt search rankings because search engines may not show pages that appear to be copies of other pages. For businesses, publishing plagiarized content damages credibility and can lead to legal issues if copyrighted material is used without permission. Running a check before submitting or publishing is a simple precaution that prevents problems you may not see coming.
The tool divides your text into smaller segments and searches for those segments across publicly available web pages, academic papers, and other indexed text sources. It identifies matching phrases and sentences, then calculates an overall similarity score based on how much of your text overlaps with content found elsewhere. Results include links to the original sources so you can review the matches yourself.
You are a blogger writing a post about time management techniques. You finish a draft and run it through the plagiarism checker before publishing. The report shows a ninety-two percent originality score with one flagged sentence: "Effective time management begins with understanding where your hours actually go." The checker links to a productivity blog that published a similar sentence. You read both versions, realize the match is a common phrasing rather than copied content, and decide to adjust your sentence slightly to make it distinct. You publish with confidence knowing the rest of the post is clean.
There is no universal number. Different institutions and publishers have different thresholds. Many universities consider anything above fifteen or twenty percent similarity worth reviewing. A zero percent match is rare and may even indicate that common phrases and properly cited quotes are missing. Focus on whether individual matches represent genuine plagiarism rather than on a single target percentage.
It depends on the specific tool and the databases it searches. Many checkers scan the open web effectively. Some also include academic databases, though access to proprietary journal content varies. If you need comprehensive academic checking, verify whether the tool covers those sources.
No. A checker can only find matches against text that exists in its searchable databases. If a source is not indexed, if it is behind a paywall, or if it exists only in print, the checker will not detect matches from it. A clean report is a good sign, but it is not a guarantee of absolute originality.
Plagiarism checkers and AI detection tools serve different purposes. A plagiarism checker looks for text that matches existing sources. AI-generated text may be entirely original in the plagiarism sense while still being machine-written. If you need to detect AI content, look for a dedicated AI detection tool.
Properly cited quotes will still appear as matches because the words are identical to the original source. This is expected and not a problem. Most checkers allow you to exclude quoted material from the similarity score. If the tool does not offer this option, simply note in your review that flagged quoted passages are intentional and properly attributed.
No. Common phrases, technical terminology, legal language, and widely used expressions can trigger matches even when no copying occurred. A high score means you should review the matches carefully. It does not automatically mean the work is plagiarized. Human judgment is always needed to interpret the results.
