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Free Plagiarism Checker
Prepostseo plagiarism checker is a reliable and accurate online tool that allows users like students, writers, and bloggers to check plagiarism for free. This plagiarism detector provides quick results with percentage and comes with many useful features.
The words Limit For Our Tool is Explained Below:
| Visitors (Free but Unregistered) | 1000 words |
| Basic Users (Free but Registered) | 1500 words |
| Basic Premium Users | 5,000 words |
| Standard Premium Users | 15,000 words |
| Company Premium Users | 25,000 words |
| Organizations / Enterprises | Unlimited words |
What is Plagiarism?
As Wikipedia says,
“...plagiarism is the representation of another author's language, thoughts, ideas, or expressions as one's own original work...”
According to Merriam-Webster,
"...to steal and pass off (the ideas or words of another) as one's own: use (another's production) without crediting the source..."
Here is our own take on explaining plagiarism.
“Plagiarism is the act of taking someone’s content and utilizing it without giving them the due credit.”
Contrary to what many people think, plagiarism has nothing to do with permission. It doesn’t matter if any content is taken from a source without the permission of the author or not. As long as the borrowed content is properly cited and the author/source is accredited, it will not be said to be plagiarized.
It is a different matter altogether if the source or author in question has expressly prohibited the use of their content even with citations/credits. In such cases, using the content would not be proper in any capacity.
Plagiarism is an unethical act and it has many consequences. That is why it is necessary to check plagiarism in all types of content before finalizing it.
How Does Our Plagiarism Checker Work?
Our online plagiarism checker works by matching the provided input text against existing content from online sources. It then generates a plagiarism report according to the percentage of unique and plagiarized text in the content.
Prepostseo’s plagiarism tool checks for plagiarized content across online sources by using different search engines.
It is also capable of detecting even minor traces of plagiarism, along with exactly matching text. It identifies all types of plagiarism, i.e., incremental, patchwork, and accidental plagiarism.
How to Check Plagiarism?
Follow the steps below to find plagiarized content using our online plagiarism checker.
- Copy your text and paste it into the given input box.
- You can also upload a file. Click on the Upload (
) button to select a document from your local storage. - If you want to exclude a specific URL, click on the Exclude URL button and paste the URL in the input box.
- You can exclude quoted text from the plagiarism check by clicking on the Exclude Quotes checkbox.
- Hit the Check Plagiarism button to start plagiarism detection.
Understanding the Results
Our plagiarism scanner provides the plagiarism report in a lot of detail. To help you understand the results better, we’re going to discuss some of the main elements in detail.
Percentage of plagiarized content
It shows the exact percentage of plagiarism found in the content. It calculates the overall percentage based on all types of plagiarism in your content.
Percentage of unique content
The results also show the exact percentage of unique content in the given text. Both the percentages are shown at the top of the results.
Matched sources
By clicking on the Matched Sources tab, you can easily see all URLs and documents from where plagiarism is found. You can also see the matched URLs by clicking on any of the red-underlined sentences/phrases.
Key Features of Our Plagiarism Checking Tool
Some of the key features of our plagiarism tool are given below:
01. Upload File to Check Plagiarism
You can upload files from local storage to check for plagiarism. Our tool supports various file types such as .doc, .docx, .pdf, .txt, etc.
02. Exclude Specific URL
Our plagiarism checker allows you to exclude specific websites and webpages from being detected. This can be useful if you want to ignore your own website from being scanned when checking for plagiarism.

03. Word Count and Clear Field Option
The words of the content are calculated in real-time to confirm how much text you are checking. If you want to clear the field for a fresh start, you can click on the Delete icon to erase the input.
04. Downloadable Plagiarism Reports
You can download the plagiarism reports in HTML and PDF format. Click on the Download Report button to get the full report with percentage.
05. Provides an Option to Make the Content Unique
After checking for plagiarism, you click on the Make it unique button.
This will open our paraphrasing tool that you can use to paraphrase your content to avoid plagiarism.
06. Provides an Option to Rewrite the Plagiarized Content
Our sentence rewriter rephrases plagiarized content to make it unique. Click on the plagiarized sentence, then click on the ‘Rewrite’ button to make content unique.
07. Citation Generator
Create citations for your text quickly and easily using the in-built citation generator. To use, simply click on the plagiarized sentence and then select the ‘Cite it’ option to open the citation generator.
08. Multiple Language Support
Our tool is available in multiple languages. You can check for plagiarism in various languages, including French, Dutch, Spanish, and many more.
09. Plagiarism Checker API
You can integrate our plagiarism API with your website or online platform for smooth and seamless plagiarism detection.