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5 Free Online Plagiarism Detection Tools


Plagiarism is the act of stealing someone’s words and even ideas and using them as your own. It is a growing concern for content marketing and creation businesses and bloggers who often outsource their content needs to freelance writers. In the digital age that we are in, it is as simple as someone using copy and paste to plagiarize an article or blog post. However, the good news is that there are plenty of free online tools that you can use to check for plagiarism and ensure that content is 100 percent unique. Here is a look at five useful and free plagiarism-checking tools.


1.  DupliChecker

This online tool is 100 percent free and has the bonus of being incredibly easy to use. You have the options of copy and pasting the text of your content, entering the URL of your content, or uploading a file. You must register to use it, and once you do so you can make 50 searches each day. The downside of this product is that if you do not register, you can only perform one search per day. However, the sign-up process is straightforward and only takes a few moments to do.


2.  PaperRater

PaperRater is another free tool. However, this one is actually a three-in-one. Not only does it detect plagiarism, but it also gives writing suggestions and checks grammar. This tool has been developed and is maintained by both linguistics professionals and graduate students, so you know that it is reliable. It will also give readability statistics and title validation for those who are interested in that. The con of PaperRater is that you are unable to save your reports on it. There is also a paid version of this product, which takes documents up to 6000 words. It also has faster processing, the ability to upload your documents, and no banner ads.


3.  CopyLeaks

CopyLeaks is an excellent tool if you would like an entire website checked for plagiarism. It will look over 50 trillion pages on the Internet to find any duplication in content. This tool also supports multiple kinds of file formats in any language. If you’d like, CopyLeaks API also lets you integrate CopyLeaks into any product. The downside of this tool is that it can only be used for online content. Additionally, you need to sign-up to use it at all. There are currently no paid versions available.


4.  PlagTracker

PlagTracker is an extremely quick tool that will scan over 20 million academic works to look for plagiarized copy. This is a very easy tool to use. However, there is also a very clear guide on how exactly to use it if you need help. Additionally, you will be provided with a report that contains details of your checked content. The con of this tool is that it is not always 100 percent accurate, and so you may need an additional plagiarism detection tool to ensure that your content is entirely authentic. Though, you should get in the practice of using more than one tool anyway to ensure accuracy.


5.  Viper

Viper is another free product. It will scan your content to look for plagiarism in over 10 billion resources including both online sources and academic essays. If there is any plagiarism contained in your content, it will show you a side-by-side comparison. Additionally, it scans against other content on your computer. The downside of this product is that it is only available for Microsoft Windows users and requires that you download the software to use it. There are currently no paid versions available.


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Cameron Mackey

Cameron is the Content Manager for the Vorongo Blog. He has spent three years in various content marketing roles. When he is not working with Vorongo he enjoys photography and hiking.

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