Plagiarism Checker
Check your content for plagiarism with our advanced detection system
Check Your Content
Paste your text or upload a document to check for plagiarism
Upload a document (DOC, DOCX, PDF, TXT)
Why Choose Our Checker?
Plagiarism Check Results
Congratulation!
No Plagiarism Found. Your document is 100% unique.
Similar Sources Found
No matching sources found. Your content appears to be original.
How to Use This Tool
Using our plagiarism checker is simple. Just paste your text into the box above, hit the “Check Plagiarism” button, and let the tool scan your content for duplicate material. Within moments, you’ll see a complete originality report.
Why Choose Our Plagiarism Checker?
Our free plagiarism detection tool is designed for students, teachers, bloggers, researchers, publishers, copywriters, and anyone who values original writing. With an intuitive interface and powerful AI, you can instantly check your work for duplication while enjoying the following benefits:
⚡ Quick Detection
Check up to 1,000 words in less than 60 seconds. Perfect for teachers and students who need rapid results.
🎯 100% Accurate Results
The tool detects all types of plagiarism—including direct, accidental, patchwork, mosaic, and verbatim. With millions of satisfied users, our accuracy is highly trusted.
🤖 Smart AI Algorithms
Powered by advanced AI, our checker goes beyond simple word matching. It identifies paraphrased, restructured, or reworded content, making it one of the most reliable plagiarism tools online.
🆓 Free to Use
Check unlimited documents of up to 1,000 words per search at no cost. Need more? Upgrade to the pro version for just $4.99.
📚 Academic Integrity
Students and researchers can ensure their submissions are 100% original, protecting them from unintentional plagiarism while promoting ethical writing practices.
🔍 Accurate Source Matching
Not only does the tool highlight duplicate text, but it also provides original source links, helping you properly cite and credit authors.
Step-by-Step: How to Check Plagiarism Online
- Upload your document or paste text into the box.
- Click “Check Plagiarism” to begin scanning.
- Review your originality report.
- Use “Remove Plagiarism” to rewrite flagged content.
- Add proper citations with the citation tool.
Types of Plagiarism Detected
- Partial Plagiarism – Slightly rephrased text still flagged.
- Exact Plagiarism – Word-for-word copied content.
- Direct Plagiarism – Copying without credit.
- Self-Plagiarism – Reusing your previously published work.
- Patchwork Plagiarism – Mixing copied sentences from multiple sources.
- Accidental Plagiarism – Unintentionally writing phrases already published.
How It Works
The plagiarism checker uses billions of web pages, academic sources, and research papers to scan your text. Its AI-powered engine not only catches exact matches but also detects partially copied or rephrased content.
Key Features
✅ Multiple input options: paste text, upload files, or import from cloud storage (Google Drive/Dropbox).
✅ Check entire web pages with just a URL.
✅ Exclude specific sites from scanning.
✅ Get plagiarism percentages (e.g., 82% unique, 18% copied).
✅ Sentence-by-sentence results for precise checking.
✅ Multilingual support (English, Spanish, French, Italian, Portuguese, and more).
✅ Integration with WordPress and other platforms.
✅ Built-in rewriting tool to instantly fix duplicate content.
Who Can Benefit?
- Students – Ensure assignments are plagiarism-free.
- Teachers – Check student work against online sources.
- Proofreaders – Verify originality in manuscripts and client work.
- Authors – Confirm manuscripts are unique before publishing.
- Copywriters & Marketers – Guarantee originality in ads, blogs, and web content.
Why Avoid Plagiarism?
Plagiarism can lead to:
- Academic penalties (failing grades, suspension, expulsion).
- Loss of credibility and reputation.
- Job dismissal or difficulty in future employment.
- Website ranking drops on Google.
- Legal and copyright issues.
Our duplicate checker ensures your content stays original, safe, and trustworthy.
Security & Privacy
Your data is 100% safe. Uploaded content is never stored or shared. Once the scan is complete, your text is automatically removed from our servers.
Want to publish your unique content?
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FAQs
Q: What is the most accurate free plagiarism checker?
A: SmallSEOTools’ plagiarism checker is one of the most accurate free tools available.
Q: How can I avoid plagiarism?
A: Use our paraphrasing tool to rephrase flagged text, then recheck for originality.
Q: Can I check plagiarism in Google Docs?
A: Yes, just download the file and upload it to our tool.
Q: Is this tool suitable for academic use?
A: Absolutely. It’s widely used by students, researchers, and teachers.
Q: Is AI-generated content plagiarism?
A: Not by default—but if you copy AI text without credit, it can be considered plagiarism. Always edit and cite when necessary.
Q: What makes this tool better than Turnitin?
A: While Turnitin is a premium tool, SmallSEOTools offers a free, fast, and accessible alternative with robust detection capabilities.