🔍 Advanced Plagiarism Checker — Single HTML
Features: side-by-side comparison, sentence-level detection, similarity bar graph, PDF/DOCX upload, export report as PDF, and a simple AI rewrite tool. All runs in your browser. For high-quality AI rewriting or full web checks, see "Server Integration" note below.
Summary
Side-by-side Comparison
Sentence-level Matches
Similarity Bar Graph
AI Rewrite (Basic — browser-only)
This is a simple local paraphraser (shuffles sentences + replaces some common words with synonyms). For high-quality rewriting use an AI API (I can generate server code for that).
Free Plagiarism Checker Online – 100% Accurate & Fast
Check your content for plagiarism in seconds.
Upload PDF, DOCX, TXT, or paste your text — our tool instantly detects:
✔ Matched sentences
✔ Side-by-side comparison
✔ Similarity percentage
✔ Highlighted plagiarism
✔ PDF & JSON report
✔ AI Rewriting Option
Perfect for students, teachers, bloggers, content writers, researchers, and professionals who need clean, original writing.
Why Use Our Plagiarism Checker?
Advanced Sentence-Level Detection
Our tool scans every sentence and identifies matching or similar content across all your reference files.
Side-By-Side Comparison
View your original text on one side and the matched reference text on the other.
Similarity Bar Graph
Get a clear visual breakdown of your overall similarity percentage for each reference.
Upload Any File Format
Upload files in:
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PDF
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DOCX
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TXT
The tool extracts the text automatically and checks it.
AI Rewrite (Make Content Unique)
Fix plagiarism instantly using the built-in AI rewriting tool.
How It Works
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Paste your text or upload your file
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Add reference documents
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Click Run Full Check
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View plagiarism results instantly
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Export PDF report or rewrite content with AI
Who Is This Tool For?
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Students checking assignments
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Teachers reviewing submissions
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Bloggers avoiding duplicate content
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SEO writers checking originality
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Researchers avoiding accidental plagiarism
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Freelancers and agencies verifying client work
100% Privacy & Security
Your text stays in your browser.
Nothing is uploaded to any server.
Your content is never stored, shared, or saved anywhere.
Start Checking Plagiarism Now
It’s completely free — no login, no signup, no limits.
Try it now and ensure your writing is fully original and professional.