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7 Best Plagiarism Checker Tools For Free

In order to commit plagiarism, you must use someone else’s work without their consent. It doesn’t give the original author of the work any credit (inadvertently or on purpose). Unauthorized reuse of prior work and passing it off as original work are both examples of plagiarism.

A plagiarism checker is an online tool that may examine a document or a section of it for duplicate or duplicated information. These programs search the web for more copies of the material or documents. Many of these programs enable you to verify the URL of a website or add material from documents (.rtf, ex, .doc, .pdf,.txt, .docx, and .odt).

The list of the top 7 plagiarism checker tools, together with their most used features and website connections, is provided below. Both free and commercial software can be found on the list.


Finding similarities throughout the Internet and databases may be done quickly and accurately with the help of To save teachers’ time and hasten student progress, universities, colleges, and schools use a plagiarism checker. a teacher plagiarism analyzer that is simple to use and offers institutions unlimited training sessions.


  • A cutting-edge application that separates text modification from paraphrase.
  • Numerous tests to guard against unintentional plagiarism.
  • Rapid LMS integrations, a Google Docs add-on, and popular LMS.
  • Recognizes citations and quotations.
  • Quick feedback to assist pupils.
  • Improving writing abilities with grammar and spelling checkers.
  • To aid with appropriate citation, a citation generator.


2. Grammarly

A popular tool for checking grammar and plagiarism is Grammarly. This program can find plagiarism on many different websites. Knowing whether or not your text has duplicate content is helpful.


  • You can batch search the content with this program.
  • When text matches with text online or in the database, Grammarly issues a plagiarism alert.
  • By comparing your text to more than eight billion web pages, it assists you in identifying plagiarism.
  • It offers suggestions for various writing styles as well as grammar, vocabulary, and syntax.
  • You may find out how many instances of content duplication with Grammarly’s quick report.
  • Your writing remains confidential with this anti-plagiarism technology.


3. SmallSEOTools

SmallSEOTools is a tool for checking text for plagiarism. It is one of the greatest free tools to check for plagiarism and you may upload files in the following formats:.rtf,.ex,.doc,.pdf,.txt,.docx, and.odt. This software can look for duplicate text across many different web pages. With the help of SmallSEOTools, you can easily exclude a particular URL.


  • Dropbox and Google Drive are supported by this online plagiarism detector.
  • enables the integration of website URL.
  • It makes it simple for you to download a plagiarism report.
  • The created report may be distributed to others.
  • a variety of languages, including French, Italian, Portuguese, Spanish, and others, are supported.
  • It provides a view of highlighted documents.
  • This free plagiarism detector makes it simple for you to compare the outcomes.


4. DupliChecker

The application DupliChecker makes it simple to locate the content online. It can open a wide range of file types, including.rtf,.txt,.tex,.docx, and.doc.


  • You can do a single search for up to 1000 words of content with our free plagiarism detector tool.
  • You can use it to copy and paste text right into the search box.
  • This online plagiarism detector displays the outcome as a percentage.
  • provides a tool for paraphrasing the text to avoid plagiarism.
  • It provides a welcoming environment.


5. PrepostSeo

A wonderful tool specifically created for students is PrepostSeo. However, due to its characteristics, it is also a good option for authors who work for pay.

The tool’s free edition has a few accessibility features. The cost of paid or premium plans begins at $50 per year.


  • Users can upload files in formats like.doc,.docx,.pdf,.txt, and others or paste text into them.
  • A Google Chrome Extension is also provided.
  • The content is never saved for any kind of later use.
  • The reports are accessible and downloadable in HTML and PDF formats.
  • Reports with sources, highlighted text, and percentages are displayed.
  • It provides a “Make it Unique” option that enables users to create original material out of a document that has been flagged for plagiarism.
  • There are several languages supported.
  • Thesis, books, assignments, codes, articles, essays, and other materials can all be checked with it.
  • There is also a smartphone app available.


6. Quetext

It is yet another excellent free plagiarism detection tool that can benefit instructors, authors, and writers in general.

It detects duplicate information in the entered text using DeepSearch Technology. The technique can detect contextual plagiarism in addition to blatant plagiarism.

Up to 2500 words may be checked under the free plan. You may benefit from features like checking 100,000 words, DeepSearch, and others with the subscription plan, which costs $9.99 per month.


  • Find precise matches and close matches, sometimes known as “fuzzy” matches, that can be identified by distinct colors.
  • Use the snippet text viewer to compare and contrast the copied texts for analysis.
  • Learn about context.
  • Use Citation Assistant to help you with your MLA, APA, or Chicago references.
  • Get the originality report here.
  • The application carefully adheres to privacy.


7. Plagium

The easiest to use software for checking for plagiarism is definitely Plagia. It offers a paid edition with further benefits in addition to the free version for checking plagiarism.

The best aspect is that, unlike other programs, quick check does not require registration in order to use the free version. The outcome will appear on the screen quickly after you paste the material and click the Quick Search button. However, if you want to conduct a deep search, you must register.

Both prepaid and monthly options are available. The plan starts from $0.04 per page.


  • Users can use it to read and analyze texts from separate files and websites.
  • In addition to English, it also supports other languages like French, Portuguese, and Spanish.
  • The reports are simple to comprehend because they contain graphics for easier comparison and analysis.
  • It searches for plagiarism at several levels.
  • Different formats might be used to display the results.



What Is a Plagiarism Checker, You Ask?

A plagiarism checker is an online tool that may examine a document or a section of it for duplicate or duplicated information. These programs search the web for more copies of the material or documents. Many of these programs enable you to verify the URL of a website or add material from documents (.rtf, ex, .doc, .pdf,.txt, .docx, and .odt).

Which Software Has the Best Plagiarism Checker?

Some of the top plagiarism detector programs are listed below:
2. Grammarly
3. SmallSEOTools
4. Duplichecker
5. PrepostSeo
6. Quetext
7. Plagium

What is the working process of the plagiarism checker?

Plagiarized text is found and shown by a plagiarism checker. These tools separate your content into manageable chunks and phrases, then conduct individual searches on each phrase. These programs search the internet for similar information by looking at how it has been used before.
Plagiarism checkers utilize sophisticated proprietary algorithms to find information that is similar across words, paragraphs, and concepts. If a sentence appears on more than one page, it is determined to be plagiarized. Accurate results are produced by the software used to scan documents in real time for plagiarism.

What are the legal repercussions of not checking for plagiarism?

There is a good likelihood that the material you write will draw inspiration from works by earlier authors. You will be violating the author’s rights if you don’t run your work through a plagiarism checker. Criminal charges may then be brought against the offender. If your content violates copyright rules, there is a good probability that you will face legal action as a plagiarist.

Is it secure to use an online plagiarism checker?

The majority of plagiarism detectors abide with data privacy rules. To ensure that employees do not have access to the information you create, they have strong policies and procedures in place. The stuff that is kept on their servers can be deleted at any time.

How accurate is the Plagiarism Checker?

The plagiarism detection software you employ determines how accurate it is. While some technologies offer less reliable results, certain plagiarism detectors produce accurate results. The size of the database utilized by plagiarism software and its algorithm both affect how well the software detects plagiarism. Some plagiarism detectors can only catch direct plagiarism, but a competent one can also spot it when the same words or sentences are used in other texts.

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