Formal Definition: An online Plagiarism Checker is a program or a service which searches other documents and text, pdf and web databases accessible on the internet to find the copied piece of content in your document. Paid vs Free Plagiarism Checkers This is a long debate that which plagiarism checker is good and efficient enough. A free checker like Copyscape or smallSEOtools or a paid one like proWritingAid or Grammarly.

1. Check For Plagiarism Free Online Turnitin

Many consider the free plagiarism checks are as powerful as the paid ones. However, this doesn't seem correct in the current scenario. Here are the reasons:. Plagiarism checkers search online records for similar phrases in them. However, not every paper and document which should be looked into is present and accessible. Free tools are very limited in indexing and Web Scraping.

A free plagiarism checker may output false positive while checking against an article. For a simple website, blog or a low- quality essay submission, it is quite right to use a free tool. But if this is an important research paper or a quality website you should always prefer to go for a paid one to avoid risks. Risk With Free Plagiarism Checkers available There is no such thing like a free lunch. Since every tool you are using is a business for someone.

He or she must earn something from it if (sh)he has put efforts into creating it. Some free plagiarism checkers may keep your data when you are using their tool and then sell it to the other sites. Now, this is very, very dangerous because your paper gets immediately plagiarized when they do it.

Here are some of the best ( free and paid) plagiarism checker for teachers available to use online. We have tried to add the Software which also tells the percentage of plagiarism in the article. This kind of tool helps to manipulate your content if there is a maximum plagiarism limit is pre- defined. Online Plagiarism Checker for Teachers and Students (With Percentage Reports).: ProWritingAid is one of the premium choices of web content writers, teachers, students, and researchers.

Even though they are not free like Viper (See below), you get some of the interesting advantages. Benefits. Editing Tool suggests worthy styling improvement while writing. They don't save your content so you need not worry about self-plagiarism risks.

The cost of using ProWritingAid is low as compared to the other substitutes. Regular reports will help you to improve and reduce further errors. Available for nearly every browser and device you use for your writing including Google Docs, Chrome, Windows and Mac.

Have a trial period and money back guarantee. Grammarly is perhaps the most popular editing, spell-checking and plagiarism checker tool on the net. The best part of this multi-purpose copied content checker is its utility. Here are some of the advantages you will receive out of the box. You can use it for free. Free Spelling checker. (needs free account).

Free synonyms and writing suggestions. (needs free account). Cheap Service for plagiarism checker tool.

Proofreading service available. Compatible with almost every writing platform. Have a money back guarantee if you are not satisfied with the product. An Anti-Plagiarism Scanner: Now one of the most loving products of web content curators.

It is completely free but as I said earlier ' there is no such thing as a free lunch', your data will be used to compare other content for plagiarism checks after 3 months. Since 3 months is a big time period, it is perfectly fine to use Viper if you think you don't need your article after 90 days. Plagiarism Checker X is one of the most widely used plagiarism checker which provides huge advantages over its other companions. It is used by teachers and students in several universities like King Saud University, IEEE, and American University of Science and Technology. It provides features like bulk checking, one-time payment, cross checking, detailed report, offline checking. It is supported in windows platform only.

MOSS is developed as an open-source utility to detect similarity in software programs. It is used by professors directly involved in computer science and programming work. It is also used by the industry professionals since its development in 1984. (for Educational Blogs): SmallSEOtool is again a completely free plagiarism checker available online. It works good for small publishing like a blog and low-quality submission. Since most of the tools come with a fixed number of word limit you can check, this tool will be helpful to use along with them.

SmallSEOtools also provide some of the crucial services other than copyrighted content checking like Google ranking for a specific keyword and grammar checker tool as well.: Copyscape is a tool you will always hear about when it comes to the basic plagiarism check. You need to enter a URL and it will output how many of other websites have the similar content like yours.

Here they don't provide a space to write your article or to upload your document. You Need to save it on your personal or someone else's servers and then put that URL in their input bar. It is very simple and straightforward system to use. Nowadays, everyone is searching for the alternatives of Turnitin.

But still, the popularity of Turnitin is not falling to the earth. This is the first tool for checking plagiarized and stolen content checking and reporting. However, this website uses your content to compare and provide your content to the other sites after a certain time period, this is again vulnerable to the self-plagiarism risk. A very few of us know that CrossCheck from IEEE is now available to check for multiple submissions and plagiarism in the submission for teachers and students.

It is also available through APIs and through their direct portal. Self-Plagiarism Risks: Some of the websites save your article when you use their tool to check plagiarism. These websites use this content to compare other documents and provide it to other users to compare their content as well. However, they claim to not use this data until a certain period of time, this may lead to self-plagiarism dangers to you.

Next time, whenever you will try to use this content to submit somewhere it would be already available online and might cause plagiarism. Which is the Best Choice for Teachers? Many academicians agree that the war against content privacy and information protection is a never-ending battle.

Since only those content can be checked online which are actually present online, no tool can be 100% correct. However, good plagiarism checker software can save your hundreds of hours by finding similarity in your content.

This can be intentional as well as accidental. If you only want to check the IEEE databases using CrossCheck is also a preferred choice.

We put the most popular plagiarism checkers to the test to find out which is the best plagiarism checker. To us, good plagiarism checkers tick the following boxes:. Detects all plagiarism in a document. Is easy to use and understand. Is accurate and does not report on false positives. Is safe and does not sell, publish or store your document The overview and graph below show the top 10 of best plagiarism checkers including the plagiarism detected, usability, accuracy and database size. Top 10 best plagiarism checkers of 2019 Plagiarism checker Plagiarism detected Usability Accuracy Database size 1.

44% 5/5 5/5 5/5 2. 23% 5/5 5/5 5/5 3. 29% 4/5 4/5 2/5 4.

28% 1/5 4/5 2/5 5. 19% 3/5 3/5 3/5 6.

17% 4/5 4/5 2/5 7. 16% 2/5 3/5 4/5 8.

0% 5/5 2/5 4/5 9. 5% 1/5 1/5 1/5 10.

4% 1/5 1/5 1/5 Results per test documents. Document 1: A real paper with original and plagiarized paragraphs. Document 2: A 100% plagiarized text with excerpts from journals, books and websites. Some words were changed to see how the plagiarism checkers address this issue. Cons. Quality comes at a price Summary Scribbr is clearly the best plagiarism checker for students. Of all the plagiarism checkers we tested, this one was most successful at detecting plagiarism.

Furthermore, the plagiarism report includes a clear plagiarism percentage and a list sources that have similarities with your document. Database size Scribbr’s plagiarism checker has the largest database of scholarly sources and is therefore capable of finding more similarities compared to other plagiarism checkers. Billions of web sources.

Millions of publications and scientific articles Accuracy Scribbr’s plagiarism checker can detect not only exact similarities but also patchwork plagiarism (i.e. Slightly rewritten text). In addition, the technology has the options available to ignore your bibliography and properly quoted text.

This results in a much more reliable plagiarism check. Usability The plagiarism report is clear and contains all the information you need. It reports a plagiarism percentage, a list of sources and a color-coded copy of your document that highlights areas with potential plagiarism. Ephorus review Unfortunately, the Ephorus plagiarism checker is not available to students.

Cons. Currently not available to students Summary The Ephorus plagiarism checker has been acquired by Turnitin. Some universities still use the Ephorus technology, but they are gradually upgrading to Turnitin. Database size Ephorus has access to many sources and is therefore able to detect large amounts of plagiarism. Ephorus database. Internet sources. Books.

Journal articles Accuracy The Ephorus algorithm is the second-best on the market, after Scribbr. Like Scribbr, Ephorus can detect. Usability The plagiarism report is detailed and easy to read, as you can see in the example above. Plagiarized sentences are highlighted, and the source is displayed in the margin. Moreover, every source is highlighted in a different color.

Quetext review Recommended: Yes, if you don’t mind a monthly subscription Price: $9.99 per month. Cons. Does not check for plagiarism against scholarly articles.

Does not find all plagiarized sentences. Some sentences are falsely marked as plagiarism (false positives). No individual checks possible, only monthly subscriptions Summary In both documents, the Quetext plagiarism checker was able to find more plagiarized text than most other checkers. However, it detected much less plagiarism than Scribbr. If your university uses a more advanced tool, then you might be surprised by unexpected plagiarism that Quetext didn’t find.

Database size Quetext’s database is considerably smaller than that of Grammarly and Scribbr. It only checks for plagiarism against Internet sources and online books.

It does not detect plagiarized text from journal articles. Internet sources. Books Accuracy Unlike many other plagiarism checkers, Quetext is capable of detecting plagiarism, even if some words are changed. However, the algorithm does detect many false positives. This means that the reported plagiarism percentage is in fact much higher than it should be. Usability The results are reported in a nice overview that includes a percentage and highlights the sentences that are matched with other sources.

Check For Plagiarism Free Online Turnitin

Quetext also has a built-in citation feature to help you cite plagiarized paragraphs. Compilatio Studium review Recommended: Yes, but be aware of the absence of a detailed report Price: $5 for a 1-day package (max 7,500 words); bigger packages are available. Cons.

You can’t see what parts of the text contain plagiarism. PayPal is the only payment method. Bakit mahalaga ang wikang filipino. Does not have access to a database with student papers and theses Summary The Compilatio Studium plagiarism checker is of good quality and reported high plagiarism percentages for both documents. The sources found are accurate and divided into three categories: “matching similarities,” “assumed similarities” and “accidental similarities.” However, it does not report which parts of your document are plagiarized.

This makes it hard to add accurate citations or rewrite your text. Database size The Compilatio Studium plagiarism checker only compares your document against available Internet sources and its own database. It does not check your work against papers submitted by other students. Internet sources. Own database Accuracy The algorithm finds the right source for plagiarized text.

In contrast to some other plagiarism checkers, it did not report any false positives. Usability Unfortunately, the report is limited to a plagiarism percentage and a list of sources. An overview of where your text contains plagiarism is missing. After doing the check, you know which sources your paper matched with but not where to put the citations. Other plagiarism checkers do have this feature. BibMe review Recommended: If you’re willing to pay for a plagiarism checker, there are better alternatives Price: Three-day trial (credit card required) and then $10 per month (maximum of five checks). Cons.

Does not provide a plagiarism percentage. Your document is added to the BibMe plagiarism database. Maximum five checks per month included in the price of $10 Summary The database is small, and the matching algorithm does not perform as well as other plagiarism checkers. If you’re willing to spend money on a plagiarism checker, then there are better alternatives. If you want to make use of the BibMe plagiarism checker, you’ll need to sign up for BibMe Plus. After the three-day trial, it costs $10 per month and includes five plagiarism checks per month.

Database size The database includes basically everything that is openly accessible online. BibMe is able to find the plagiarized text from journal article abstracts, but not from the content of the article. Internet sources.

Books Accuracy The algorithm found quite some plagiarism in Document #2 (100% plagiarized text). However, it detected very little plagiarism in Document #1 (the real paper). For students, this plagiarism checker is less suitable, as their papers often contain slightly rewritten text rather than 100% plagiarism. Usability BibMe does not report a plagiarism percentage as other plagiarism checkers do. It only highlights the parts of the text that are plagiarized. BibMe does include some useful additional features, such as a spelling checker (which is of moderate quality) and a citing tool.

Plagscan review Recommended: Yes, if you don’t mind that some potential plagiarism is not detected Price: Free trial (2,000 words); $9.99 for 50,000–200,000 words. Cons. Did not find much plagiarism in Document #1 (real paper). Some text is falsely flagged as plagiarism. No access to databases with student papers Summary Plagscan is a widely used plagiarism checker that performed well with Document #2 (100% plagiarized text). However, in Document #1 (real paper), which contained patchwork plagiarism, Plagscan did not detect much plagiarism.

This shows the quality difference with, for instance, Scribbr. Database size The downside of Plagscan is the size of its database, which is smaller than that of Scribbr, Ephorus and Grammarly. Plagscan therefore cannot detect plagiarism from certain sources. Internet sources. Books Accuracy The algorithm is smart enough to flag plagiarized paragraphs with some changed words. However, the algorithm sees every sentence as separate, resulting in many separate plagiarism matches with the same source.

Usability The plagiarism report is clear and easy to use. You receive a list with all the matched sources, which are also highlighted in the document itself. In the report, the text is categorized as “exact match,” “possibly altered text” and “marked as quotation.” However, the categorization does not work perfectly. Plagramme review Recommended: Yes, if you’re on a budget and do not mind spending time looking into falsely marked plagiarism. Price: $0.35 per page. Cons. It’s hard to recognize your own document as it removes all paragraphs (see screenshot).

Requires an account in order to use the trial. In order to get free credits, you need to post on social media Summary The Plagramme plagiarism checker found a high percentage of plagiarism in Document #2. However, it falsely flagged a lot of words and sentences. This makes the plagiarism percentage less reliable.

The pricing of the plagiarism checker is confusing. Plagramme claims to offer a free check, but in reality, it only gives you the plagiarism percentage for free. To find out which parts of the text are plagiarized, you have to buy credits. Database size. Internet sources. Books. Journal articles Accuracy The algorithm works rather well, even when some words are changed.

It does flag quite a lot of false positives. Furthermore, it does not detect all plagiarism, even if the original information comes from a source that the checker has access to. Usability One of the shortcomings of this check is that the document doesn’t keep the original formatting (as can be seen in the screenshot). Grammarly review Recommended: No, Grammarly did not detect any plagiarism in Document #1 (the real paper) Price: $29.99 for one month (or cheaper when choosing a yearly plan). Cons. Fails to detect patchwork plagiarism (only detects exact similarities).

Only available as a monthly subscription Summary Grammarly focuses on its spelling and grammar tool and offers the plagiarism checker as an additional service. If you’re already a paying Grammarly customer, then using their plagiarism checker might be a good option. However, if you really want to identify plagiarism in your paper, then you are better off using another plagiarism checker that is capable of finding more than exact matches. Database size Grammarly’s plagiarism database is quite extensive. It can check your document against the following sources:.

ProQuest’s database. Internet sources. Books. Journal articles Accuracy The Grammarly plagiarism checker does not perform well when some words in a plagiarized paragraph are changed.

It detected 0% plagiarism in Document #1 (a real paper), whereas other plagiarism checkers like Scribbr detected 44% plagiarism. Usability Grammarly is easy to use. It reports a plagiarism percentage and a list of sources in which the matching text can be found. The plagiarized text is underlined in the document next to possible spelling and grammatical errors.

Smallseotools review Recommended: No, it uses a very poor algorithm, has a small database and is not user-friendly. Cons. A lot of distracting ads and buttons. 1,000-word limit. The plagiarized text is not highlighted in the document.

Only finds exact matches with Google Search (you’ll need to find the source yourself). Doesn’t detect plagiarism when some words are changed Summary As the name suggests, Smallseotools is a free plagiarism checker primarily meant for marketers who want to check short snippets of text for plagiarism.

We only reviewed Smallseotools because a lot of students use it. Overall, this is not a good plagiarism checker for students as the results are not reliable and are very tough to analyze. Database size Smallseotools has no specific database. This plagiarism checker enters every sentence in Google Search to see if it finds a match. When it does, it marks the sentence as plagiarized.

As can be seen in the plagiarism percentage, this method is very unreliable. Accuracy Smallseotools uses Google’s “exact search” to find matches. There is no database or advanced algorithm, which is reflected in the limited amount of plagiarism detected by the check. The downside of the Google Search method is that you have to find the source of the matched text in the search results by yourself. Usability This plagiarism checker doesn’t highlight the plagiarized text in the document. It only provides you with a list of plagiarized sentences.

Searchenginereports review Recommended: No, it does not find much plagiarism Price: Free (maximum 1,000 words per check). Cons. Does not work for long texts (max 1,000 words per check). A lot of distracting ads Summary Just like the Smallseotools plagiarism checker, Searchenginereport.net is built for businesses rather than students. The performance of these plagiarism checkers is similar. In Document #2 (100% plagiarized text), the checker did detect plagiarism, but it did not detect plagiarism in the real paper. Database size This plagiarism checker only compares your document against sources available on the Internet.

Accuracy The algorithm is poor. It finds exact matches but is unable to detect plagiarism when some words are changed. Furthermore, the algorithm analyzes every sentence individually instead of analyzing the paragraph as a whole. Usability The report only shows a list of sentences that are possibly plagiarized. When checking a larger document, this can be confusing because every sentence is shown separately.

If you want to find the source of the plagiarized text, then you are redirected to Google’s exact search. Edubirdie review Recommended: No, it finds very little plagiarism and possibly sells your document Price: Free (used as marketing to acquire customers for their essay writing service). Cons. When using the check, you grant Edubirdie a royalty-free licence for your document.

Hard to analyze the plagiarized parts due to the small window used to display feedback. Detects very little plagiarism Summary Edubirdie’s plagiarism checker is of very poor quality. It found much less plagiarism compared to other checkers.

Its database is rather small, and the algorithm only checks for exact matches. The major and rather dangerous downside is that Edubirdie stores your document. By using the free service, you grant Edubirdie a royalty-free licence for your work. Edubirdie might even sell your document through its essay writing service. It says so in the.

Database size Edubirdie only checks against major Internet sources. Plagiarized text from small websites is not detected. Internet sources (major websites only) Accuracy The algorithm is really poor.

It only finds exact matches. When a few words are changed, it does not detect any plagiarism. Furthermore, Edubirdie marks some parts of the text as plagiarism even when they aren’t plagiarized. Usability The window that displays the plagiarism check results is small and fairly useless for students with a large document. You can only see four to six sentences at a time. Frequently asked questions about plagiarism.