Plagiarism Checker

Check your text against billions of sources. Fast, accurate, and reliable.

Quick Scan

Paste text or upload (.txt, .doc, .docx, .pdf)

Paste or upload your text

Paste your content into the box or upload a document. The checker supports essays, papers, articles, and other written work.

Run the scan

Click to check plagiarism. Smodin scans your text against billions of web and academic sources in seconds.

Review your report

See similarity scores, matched sources, and highlighted sections. Use the report to fix issues and add citations before you submit.

A plagiarism checkerscans your text against a large database of sources, including the web, academic papers, and publications, to find matches and similarity. It helps you ensure your work is original and properly cited.

Smodin plagiarism checker compares your content against billions of sources and returns a clear report with similarity scores and source links. You can fix flagged sections, add citations, or use our AI Humanizer and writing tools to improve originality while keeping your message intact.

Students

Verify essays and papers before submission. Meet academic integrity requirements and avoid accidental plagiarism.

Educators

Review student work for originality and teach proper citation. Save time with fast, accurate results.

Writers & researchers

Ensure articles, reports, and research are original. Get source links to cite correctly.

Professionals

Check reports, proposals, and marketing copy for uniqueness and brand safety.

Cite your sources

When you use someone else's ideas or words, add in-text citations and a reference list. Our checker helps you find missing citations so you can fix them before submission.

Paraphrase properly

Paraphrasing means rewriting in your own words and structure. Not just swapping a few words. Use Smodin writing and rewriting tools to help rephrase while keeping meaning clear.

Check early and often

Run a plagiarism check on drafts as you go, not only at the end. Catching issues early makes it easier to revise and cite correctly.

Verify after humanizing or rewriting

If you use an AI Humanizer or other rewriting tools, run the plagiarism checker again to ensure the final text is still original and properly attributed.

Legal & Financial Consequences

Publishing work without checking for plagiarism can have serious legal, financial, and personal consequences. Protect yourself by using our plagiarism checker to verify content originality before submission.

Reputation Protection

Accusations of copying can damage your reputation. Check your text for plagiarism to ensure your work is original and properly cited, maintaining your credibility and professional standing.

Academic & Professional Standards

Verify your content's originality and add citations where necessary. Our plagiarism detector helps you meet academic and professional standards while ensuring your work passes plagiarism detection tests.

Why Check for Plagiarism?

Publishing such work without checking for content plagiarism can have legal, financial, and personal consequences. It also damages your reputation due to accusations of copying. You must verify your content's originality and add citations where necessary.

Keyword & Phrase Matching

Plagiarism detection compares the keywords and phrases in your text with its online database of millions of web pages. This is handy for identifying plagiarism and finding new sources for your content.

Extensive Database Comparison

Plagiarism detection works by checking a large body of submitted documents. This method requires a large database of text works which are typically only available to the main organization that owns and publishes those works.

Internet Database Search

Our plagiarism detector works by searching the internet database for potential plagiarized sources to determine if the content is unique or plagiarized. We scan billions of web pages and documents.

Ever-Expanding Database

Smodin is one of the few tools with an ever-expanding database, ensuring trustworthy plagiarism and originality results. Our plagiarism checker continuously updates to provide accurate detection.

AI content detector

Check if text is AI-generated. Use with the plagiarism checker to ensure both originality and human-like writing.

AI Humanizer

Make AI text sound human. After humanizing, run the plagiarism checker to confirm content stays original.

Writing

Generate and refine drafts with AI. Then check for plagiarism before you submit.

What is plagiarism?

Plagiarism is copying work from other sources, intentionally or unintentionally, and using it in your content without crediting the authors. There are multiple types of plagiarism. For example, accidentally copying your previous work, even though you're the author, is still plagiarism. Use our plagiarism checker to detect and avoid plagiarism.

Still Have Questions About the Plagiarism Checker?

Our support team is here to help you get the most from the Smodin plagiarism checker and originality tools.