Plagiarism Checker

Estimate originality against a simulated web index. Scan depth changes how aggressively we surface potential matches—deterministic for the same text.

Scan depth

0 words·0 characters·Limit ~10,000 words for best results

This tool uses a deterministic demo engine (not a live search index). Use it to structure edits and citations—verify critical matches independently.

Originality results

You will see an originality score, similarity percentage, a short summary, and any simulated matches.

Why Use an Online Plagiarism Checker?

Whether you are a student submitting a term paper, an academic researcher publishing a study, or an SEO content writer publishing a blog post, originality is crucial. Our free plagiarism checker online helps you verify that your work is completely unique.

Accidental plagiarism happens more often than you think. You might forget to add quotation marks, lose track of your citations, or unintentionally paraphrase a source too closely. Our tool acts as a safety net, scanning your text against billions of online sources.

If matches are found, we provide the exact URL of the source. This allows you to quickly go back and properly cite the work, avoiding academic penalties or search engine de-indexing.

Benefits of Our Free Scanner

Deep Scan Technology

Our system checks your writing against billions of web pages and published academic papers to ensure 100% originality.

Exact Match Highlighting

Instead of a simple percentage, we show you the exact sentences that match other sources and provide the source links.

Adjustable Scan Depth

Use Quick scan for brief blog posts, Standard for everyday essays, and Deep Search for critical academic submissions.

Privacy Focused

Your documents are never stored or sold to third parties. We check your text in real-time and discard it immediately.

Quick Guide

How to Check an Essay for Plagiarism

Paste Your Document

Input your essay, article, or report directly into the plagiarism checker.

Choose Scan Depth

Select how thorough you want the analysis to be (Quick, Standard, or Deep).

Review Matches

Look at the similarity percentage and review the matched sources to properly cite your work.

Pricing

Pricing plans for teams of all sizes

Choose an affordable plan that fits how you use our AI humanizer, grammar checker, plagiarism scan, and AI detector.

Free

Perfect for testing our AI humanizer capability.

$0/month

Get started today

5000 words per day
Basic humanization engine
Standard grammar check
Community support

Pro

For teams and power users who need higher limits and priority support.

$5/month