Paste (Ctrl + V) your article below then click Check for Plagiarism!
The Plagiarism Checker on seochecker.tools is a free and fast way to detect copied content from the internet. Whether you’re an SEO expert, content creator, blogger, teacher, or student — originality matters.
This tool scans your text across billions of web pages and databases to identify content that matches existing sources — helping you stay compliant with Google’s unique content policy and avoid SEO penalties.
Google values original content and punishes websites with copied or low-value duplicate pages. If your content is even partly plagiarized, it may:
Not get indexed
Lose rankings in SERPs
Face manual penalties
Damage brand credibility
With our plagiarism detector at seochecker.tools, you can safeguard your SEO efforts by ensuring every blog post, product description, or landing page is completely unique.
✅ Scans across Google-indexed websites
✅ Highlights matched sources
✅ Shows plagiarism percentage
✅ Accepts plain text or document uploads
✅ 100% free and no login required
✅ Works on mobile, tablet, and desktop
✅ Supports English and multiple languages
Q1. How accurate is this plagiarism checker?
Very accurate. Our tool scans billions of indexed pages and compares your content using advanced matching logic, similar to what search engines use.
Q2. Is this tool safe to use?
Yes, seochecker.tools does not store or share any submitted content. All scans are temporary and private.
Q3. Can I use it for academic writing or thesis checks?
Absolutely. This tool is suitable for academic plagiarism detection, research papers, assignments, and more.
Q4. What file formats are supported?
You can paste content directly or upload .txt, .docx, or .pdf files, depending on the implementation.
Q5. Is this really free?
Yes, 100% free to use with no sign-up. It’s part of our mission to offer professional-grade SEO and writing tools at no cost.
Bloggers checking content before publishing
SEO agencies validating content uniqueness
Writers ensuring originality before client delivery
Students avoiding accidental plagiarism in assignments
Freelancers verifying outsourced content
Businesses checking copied product descriptions