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Plagiarisma

Free online plagiarism checker that scans web sources, academic papers and books for text,

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Plagiarisma is an online plagiarism checker that compares submitted text against web pages, academic papers, and books to identify matching passages. Users can paste text, upload a file (PDF, DOCX, RTF, TXT, HTML, PPTX), or enter a URL to receive a report with a similarity percentage and highlighted matching sources. The tool supports over 190 languages and requires no registration for standard checks.

Alongside the checker, Plagiarisma offers an AI content detector, paraphrasing tool, essay writer, text summarizer, grammar checker, text comparison, and APA citation generator. It is available as a web tool, a Windows desktop app, browser extensions, and a Google Workspace add-on. Standard plagiarism checks are free and do not require registration.

Plagiarisma is intended for students, educators, writers, researchers, academics, and businesses.

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