AI Plagiarism Checker
Check Content Originality
Detect plagiarism and AI-generated content instantly with advanced analysis.
0 characters • 0 words
Accurate Detection
Advanced AI algorithms for precise analysis
Instant Results
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AI Detection
Identify AI-generated content
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How to use the Plagiarism Checker
- 1Paste your text
Drop in up to 5000 words — an essay, article, blog draft, or a section of a report. No file upload needed.
- 2Run the check
The scanner does two passes: a web-similarity check (against publicly indexed content) and an AI-detection pass (identifying GPT/Claude/Llama patterns).
- 3Review highlighted sections
Any suspicious sentences are highlighted with source links (for plagiarism) or confidence scores (for AI-detection). You can then rewrite them one by one.
Who is the Plagiarism Checker for?
You're a student submitting an essay and want to be sure it passes Turnitin
You're a teacher or professor screening student work
You're a content marketer verifying an outsourced writer didn't lift from another blog
You're a job applicant and your cover letter was drafted with AI — want to know if it reads AI
You're a publisher checking guest posts before accepting them
You want to check if a competitor scraped your blog content
Real examples of what people build
- "Used it before submitting my dissertation. Caught 3 sentences I had unconsciously paraphrased too closely from a paper I read six months earlier." — PhD student
- "I run a marketing agency — we run every freelancer draft through this before publishing to protect our clients from a DMCA hit." — content agency owner
- "Our university uses this as a pre-Turnitin check so students can self-correct before the official submission window closes." — college TA
How Vyzora compares to paid alternatives
Other paid tools
Vyzora (Plagiarism Checker)
Turnitin — institutional only, $3+/scan
✓ Free, no institution required
Grammarly Premium — $30/month, plagiarism is an add-on
✓ Plagiarism + AI detection included
Copyscape — $0.10 per 200 words
✓ Free per check, up to 5000 words
GPTZero — AI-detection only
✓ Plagiarism AND AI-detection in one scan
Frequently asked questions
Is this as accurate as Turnitin?
For web-source plagiarism, yes — both crawl the same publicly indexed web. Turnitin's edge is access to a private academic paper database. For AI-detection, our accuracy is on par with GPTZero and Originality.ai on independent benchmarks.
Does my pasted text get stored?
No. Text is processed in-memory to run the check and then discarded. We do not store, log, or use your text for model training — confirmed in our Privacy Policy.
Can it detect Claude/Gemini/Llama, not just GPT?
Yes. The detection classifier is trained on outputs from GPT-3.5/4, Claude 2/3, Gemini, and Llama 3 — so it works across the major frontier models. GPT-4o and Claude 3.5 are hardest to detect (~78% accuracy in our tests).
What do I do if the check flags something?
For plagiarism flags, click through to the source and either add a citation, quote it properly, or rewrite the sentence. For AI-detection flags, rewrite the sentence in your own voice (add a specific example, opinion, or contraction — those break the AI signature).