The best free programs to detect plagiarism

With the internet and all the information we have constant access to, it doesn’t seem very easy know whether a text is really original or copied or know if someone is copying a creation of ours without quoting us.

For example, when teachers send their students a paper, they could send them a plagiarized text without the teacher knowing when grading. Or those who have a marketing company are interested Publish original article and they do not know whether all their authors adhere to it.

There are many solutions used by universities, but they are usually paid, as in the case of But there are also free websites for this purpose and free programs that can help detect plagiarism.

Microsoft Word has also implemented a Bing-based plagiarism detector Helping people who are committed to writing, both for study and for workincrease the originality of their texts and learn the most appropriate forms of attribution through tools that facilitate the insertion of relevant citations.

There are many programs that, as their capabilities have improved, have become paid, as in the case of Viper, which is well known. Now let’s get acquainted with various free plagiarism detection programs:


This tool can detect plagiarism in more than 190 languages, they say. It’s a very simple tool. It works on Windows, Android, BlackBerry, Moodle and Web. It is compatible with Google, Yahoo, Bing, Scholar and Books. You just have to grab a text and Drop it on the box that appears and just open the page. They state that they do not store the content you upload (meaning they maintain that privacy). If you don’t register, you can only check if there is nothing on Bing. To verify Google, you need to register.

After checking, it tells you how many other sources contain the same or very similar text. And it tells you what percentage of your text is unique, because the goal is that you don’t plagiarize either, even without knowing you’re doing it. Likewise If you register, you will receive more detailed information.


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This is a paid service, but you can use it to check up to 1,000 characters per day, making it a limited tool if you’re using the free service, but it can be useful if you have little to check and don’t want to do one Search. deep”, which also requires you to sign up.

As they explain themselves online, Plagium is a service of Septet Systems Inc, a company specializing in the development of information search solutions for consumers, businesses, governments, academics and the healthcare sector. The search process is slow even if you only check short texts. Yes finds nothing similar will tell you that Plagium did not find any documents that use the text who entered

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At, registration is mandatory and unlike the previous two, you do not upload the text copied and pasted, you must upload a document. gives you a Risk assessment that a text is plagiarism and even works for files with more than hundred pages.

This plagiarism checker is free for educational purposes. Teachers, lecturers, school and university professors around the world can use these services for free. To the Standard users also have their free version, but with partial rather than full functionality.


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Edubirdie is a website where you can find people who write papers like essays and integrates a plagiarism checker tool in a simple and free way. That is interesting In addition to checking whether the content is original, it points out spelling mistakes and typographical that need to be corrected.

You don’t need to register. You must upload a document in one of these formats: .doc, .docx or .txt and choose what type of document it is: whether it is a web, an essay or an abstract. It is considered plagiarism to rephrase another author’s words and use them in your essay without attribution; create and cite non-existent sources; Paraphrasing, that is, paraphrasing the text in other words and not quoting, and of course intentionally copying another author’s words or ideas in a work without giving any kind of credit.

copy leaks

copy leaks

This is a tool that offers you 10 free scans per month. In other words, if you need to check a large number of texts every month, Copyleaks wouldn’t be your tool, but if you only need less than 10 a month, you can use this website. You have to pay for more. The first must indicate whether it is for private use or whether you belong to it to an educational institution or for a company.

Its creators explain that Copyleaks is an all-in-one plagiarism detection platform that performs exhaustive searches on the web and various databases. With “our AI software you can scan documents, raw text, code and URLs in over 100 languages, complete with a detailed report of the results of each scan. Above We also support organizations with our LTI and API integrations to protect against copyright infringement and scientific plagiarism”.

Grammarly Plagiarism Checker


Grammarly’s plagiarism checker can detect plagiarism on billions of websites, as well as in ProQuest’s academic databases. Our free plagiarism checker will tell you if your text contains or no duplicate content.

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Plagiarism Checker is part of Grammarly, a writing app that provides feedback. on grammatical and spelling mistakes as well as questions of style more complex, like choice of words and so on.

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