12 Online Websites To Detect Plagiarism in Writings

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Detect Plagiarism in Writings

From web pages to the largest scientific articles, the presence in the search engines required to increase its popularity has allowed that all that written content can be seen and plagiarized without greater difficulty. However, this ease of access also implies making the review process easier by using one specialized tool.

Here are some useful online services designed to compare and instantly link all kinds of texts, perfect for teachers, students and webmasters. Part of the compilation comes from a couple of interesting listings,

The Plagiarism Checker:

Plagiarism Checker – The University of Maryland is responsible for this tool that reviews a particular text either by sticking it on the site or from a Word file. Somewhat simple, or perhaps too, although it works wonderfully to quickly search certain sections of a writing.


Comply with what you promise, search in Bing, Yahoo or Google any piece of text inserted in the search box that compose it, in addition to that you can upload documents (PDF, DOC, HTML, ODT, TXT) and paste addresses Web pages. It has a free desktop version for Windows which searches even in Google Scholar.

Plagiarism Detect:

Despite having a demo just to register, it is generally a flashy payment service that also performs reviews but using its own analysis algorithms. Its cost is 0.5 dollars per page analyzed.


Perfect for practicing writing in English because along with the proper analysis of plagiarism on the web with links to the sites where you have found it, it makes revisions of type orthography, grammar, vocabulary, punctuation marks and writing style. No registration required but the best features are paid.

DOC Cop:

Allows you to check all types of copies in DOC and PDF files, regardless of their number of words. Make quite complete reports, in Word or HTML format, which will be after a while in the tray of our mail.


Enter the feed URL of a web and optionally select the type of license in the form of a filter (copy of the original text or modified content) to start working. The results can take a few hours and are sent to the mail used to register.


An alternative to the previous one as it also handles RSS feeds. Check more than 9 million URLs to alert, via email or selecting some options as a filter, about possible matches.


Working with HTML5 and CSS3, allows you to analyze all types of Word files and PDF presentations for free. Really interesting starting with it being in Spanish.


Popular and Premium plans allow you to analyze any URL by simply pasting it into your search box. It has a paid version with additional alert functions.


More than to detect plagiarism, this space is focused on preventing them for what has educational resources useful for teachers and students: lectures, documents, presentations, articles on how to cite sources, strategies, types of plagiarism, etc.

Purdue OWL:

Very similar to Plagiarism.org but seems a bit more complete to offer, as well as all sorts of strategies to find plagiarism, tools and resources to strengthen the writing process without having to fall into textual fraud.


Perhaps the easiest step to find illegal copies is by looking for some snippets of text, enclosing them in quotation marks, on Google.com. Both the indexing and the speed of response of the powerful search engine make possible a good check of the content in the network.