What Is Plagiarism? 12 Best Plagiarism Checker Tools

Stealing content is one of the most common malpractices in the blogging world. While most people treat it as a minor offense, the act of copying another person’s work without proper referencing and citation is often punishable by law. This blog will help you understand how you can tackle plagiarism and make sure you unknowingly don’t end up plagiarising yourself. Let’s dive in.

What is Plagiarism?

Plagiarism is the copying of words, written works, ideas, or the content of another person without proper credit or acknowledgment. It involves adopting some parts of the writing of another without citation or referencing to the original writer or owner of the body of work.

Types of Plagiarism

  1. Verbatim Plagiarism: This involves the direct copying of a portion of a written work without any form of citation or mention of the source. It is very unethical, and the original work writer can take legal actions against the plagiarizing party.
  2. Global Plagiarism: This is simply presenting an entire work written by another person as your original work. In this form of plagiarism, the offender also gives no credit to the original owner, and it is not just the copying of a portion of work but the whole body of work that makes its consequences quite severe.
  3. Mosaic Plagiarism: This involves the combination of written works and various ideas from diverse sources without citation. It is a common type of plagiarism because many people believe it is challenging to discover, but this is not true.
  4. Paraphrasing Plagiarism: This is the restatement of the ideas or written work without any citation to make it look original. It is a serious offence because you are recrafting the ideas of another writer without acknowledging them.
  5. Self-plagiarism: This is very common among students. It involves copying portions of personal past written works in a new body of written work. It is the reusing of written passages from a person’s work in another body of work.

Five deadly consequences of plagiarism

  1. Legal Sanctions: Plagiarism is an offence by law which means it involves legal repercussions. Upon discovering the use of his work by another, the original author, without being given proper credit, can take legal steps to sue the plagiarizing party and request damages. In some countries, plagiarism carries a prison sentence.
  2. Monetary Damages: If the original owner of a work discovers that his work has been plagiarized and he decides to sue, he may be granted monetary damages by the court. What this means is that amongst other things, the offending party will be required to pay a certain sum of money for restitution purposes.
  3. Reputational Damage to Students: Plagiarism is an offence taken very seriously in institutions of learning. Students found guilty of plagiarism can be suspended or expelled. It can also affect their chances of being admitted to higher learning schools if such an offence is discovered in their records.
  4. Reputational Damage to Professionals: People in professional fields of study such as doctors, politicians, or other public figures can destroy their professional reputation if found guilty of plagiarism, affecting their career progress.
  5. Academic Reputational Damage: The career paths of teachers, professors, or other members of academia can be severely damaged upon allegations of plagiarism. Such people can lose the right to publish written works, which negatively impacts their academic careers.

12 best plagiarism checker tools

As a result of the damaging effect of plagiarism, technology has advanced different methods and tools of curbing the act and ensuring that these tools are accessible to all. The purpose of this is to curb the spread of plagiarism and make it easier to detect plagiarism.


Grammarly is an efficient tool designed for plagiarism checking and grammatical corrections. Grammarly helps to extract all the content within the work that was copied. It provides comprehensive feedback on word use, grammar errors, etc. All you have to do is run your article through the app. Grammarly is very well suited for use by students, scholars, website owners, and content writing agencies.

Key Features

  • It uses a one-click copyright infringement checking system.
  • It allows you to check an unlimited number of words with no issues.
  • It has some extra features such as editing, altering, and improving jargon.
  • It can find replicated content in over 16 billion site pages.
  • It has browser extensions for Firefox, Mozilla, Safari, Edge
  • You can search content in a batch.
  • You get plagiarism alerts when your text matches with online text or text in the database.
  • You get to know how many duplication issues are in your content through its instant report.
  • You get an overall originality score for your document.
  • Your writing is kept private.


Grammarly’s basic version for checking grammatical errors is free. The premium version, which includes the plagiarism checker, starts at $11.66 per month. At the same time, the business version starts at $12.5 per user per month for teams of 3 to 149.


Duplichecker is an easy tool that is used to locate content online. It also contains several tools designed to aid website owners and digital agencies, such as spell check, change text case, image to text, etc. It is majorly targeted at website owners. You can check your content by pasting your URL link or uploading the document stored on your local drive.

This plagiarism checker displays results in percentage and contains a paraphrasing tool. This tool helps users to paraphrase efficiently in a manner that is grammatically correct and original. It also has a user-friendly environment which makes it very easy to use for its users.

Key Features

  • It allows you to check the content with a maximum of 1000 words at a time.
  • You can copy-paste text directly into the search box.
  • You get your result as a percentage score.
  • It offers a paraphrasing tool for you to rephrase your content and remove plagiarism.
  • It supports different file formats, including PDF, RTF, Doc, Tex, and Txt.
  • It also has a grammar checker.
  • It makes use of API and Plugin.


DupliChecker is free to use.


Quetext is an advanced plagiarism checking tool best suited for students, teachers, bloggers, and website owners. Quetext makes use of word placement and algorithms to find the copied content in an article. It quickly discovers copied content in online books, academic sources, webpages, etc. This plagiarism tool scrutinizes and grades content and slows users to know the degree to which a written work is plagiarized.

Quetext ensures excellent data privacy. Quetext also provides you with a very comprehensive and detailed score which shows the originality of an article and the areas it can be improved.

Key Features

  • You get a comprehensive plagiarism score.
  • It has an easy-to-use user interface.
  • It uses a one-click checking system.
  • It keeps user data private.
  • It has fast deep search technology.
  • It has ColorGrade feedback.
  • It has an interactive snippet text viewer.


The basic version is free. The Pro version costs $9.99 per month.


Copyscape is an excellent tool that helps to protect your site from plagiarism. It has been in the market for quite a while and is very effective. Copyscape can be used to discover if anyone has duplicated copies of your work on the internet.

This plagiarism tool checks a page URL to discover if there are duplicates of a written work on the internet. It is a theft checker specifically designed for bloggers and site operators to keep track of duplicated content. All you have to do is place the URL of your written work into the URL portion, and it runs the check.

Key Features

  • It has an excellent hunt device for experts.
  • It can check a current page URL for duplicates on the web.
  • You can search content in batch.
  • You can compare two contents side by side.
  • It allows case management and tracking facilities.
  • You can filter out the result from the other site you already know.


It is free to use.


Turnitin is an excellent plagiarism checker which is used by many courses and programs to curb plagiarism. This plagiarism tool is authorized to use in classes and can be used to monitor and check entries before they are finally submitted.

This tool helps detect plagiarism and ensures that the article is not highlighted. It not only checks the originality of an article; it also checks if such an article was referenced if copied. Afterwards, the original content is placed side by side with the new article for modification purposes. It should be noted that this tool is not free.

Key Features

  • It places copied or similar content on the right side so that you can remove and modify it.
  • It highlights plagiarised text, leaving the unique text unhighlighted.


It goes for only personal pricing quotations.


Plagiarismdetector.net can scan up to 1000 words for free on the internet. It is very efficient for instructors and members of academia who specialize in writing essays. The premium version has no word limits, or ads display, making it the best to use because there are no distractions.

This tool ensures full information encryption, which helps to secure information. It also makes use of a defined calculation to search for copied written works online. The tool divides articles based on correlating expressions, lexical frequencies, word decisions, etc., to analyze the whole article properly. It runs the article through many routes to check if it is copied.

Key Features

  • It has a one-click checking system for linguistic errors.
  • It allows you to check 50 free queries for the first 14 days.
  • It has an in-depth search feature.
  • It allows URL/File uploading.
  • It allows real advertising
  • It supports multiple file formats


The basic version is free. The paid version of the app is available in three categories for Students at $20 per month, Institutes at $40 per month and Enterprises at $80 per month.

Whitesmoke Plagiarism Checker

The WhiteSmoke plagiarism checker is a top-tier tool with powerful precision and performance. It examines billions of web pages and checks for duplicated articles and contents in archives.

This plagiarism checker has a user-friendly interface and is very accessible on the web. It also contains an excellent copyright infringement checker. It is used for examining papers and deducing whether or not their content has been plagiarized. The white smoke plagiarism checker scans the written work on multiple sites to discover many similarities. This free plagiarism checker contains a sentence structure checker as well as an editor.

Key Features

  • It has a simple interface.
  • It is accessible on the web.


It costs $6.59/ month.


 Just like the others, Copyleaks searches the web for any form of duplication of an article. It does not consider whether or not the written work at hand is original. It also makes available over 100 languages online for the benefit of the user. Copyleaks provides highly comprehensive reports.

It contains an automated grading tool to enable efficient results. It offers you the opportunity to compare two files at the same time. It is also an excellent tool for students to crosscheck documents and online resources. Copyleaks can also be integrated with various documents such as MS Word, etc.

Key Features

  • It has more than 60 trillion pages in its database.
  • It gives comprehensive reports.
  • It provides an automated grading tool.
  • It allows integration with MS Word, Google docs, and more.
  • It allows you to compare two files.
  • It can crosscheck documents against online resources and private databases.


It starts at $9.16 per month.

SmallSEO Tools

SmallSEOTools allows the use of different file formats, which makes it user-friendly. It can check various web pages to check if the text was replicated. SmallSEOTools makes it easy to remove specific URLs.

 This plagiarism checker supports Dropbox and Google drive. It ensures the easy download of plagiarism reports, and this report can be shared with many people. It makes available languages such as Portuguese, Spanish, etc. It also provides a highlighted view of the document and helps to compare results easily. This tool enables easy integration to the website URL.

Key Features

  • It supports different file formats, including PDF, RTF, Doc, Docs, Tex, and Txt.
  • You can download your plagiarism report.
  • It allows you to integrate website URL.
  • It supports multiple languages like French, Italian, Portuguese, Spanish, and more.


It is free.


Plagiarisma is an excellent plagiarism tool for students and academicians, and educational platforms to check for content that has been plagiarized. Plagiarisma can support a large variety of documents and has over a hundred languages. It makes it highly demanded by international students.

Plagiarisma supports TXT, RTF, MS Word, and a host of other document formats, making it a user favorite. It has also been made available on Moodle, Google Play, and blackberry (which has now gone extinct). It has over 190 languages, making it a favorite for international students, and it also has no word limit per search.

Key Features

  • It supports TXT, RTF, MS Word, PPTX, XLS, PDF, EPUB, FB2, and ODT
  • It supports over 190+ languages.


It is free.

Plagiarism Checker X

Plagiarism Checker X is highly essential in checking similar articles in numerous reports. It quickly deduces whether the content was composed originally or copied from another person’s work. It is free and readily available for use on the internet.

Plagiarism Checker X works efficiently and critically examines an article by scanning it to find copied content. It shows the degree of similarity found from each source. It is used by teachers, website operators and works bodies in over 60 nations. It does not require the user to open the site; all it requires is the verification of the work area programming.

Key Features

  • You can compare the content side by side easily.
  • It keeps your data private.
  • You can import DOCX, DOC, PDF, HTML, and RTF.
  • It supports multiple languages, including English, French, Spanish, Italian, and more.
  • It provides 24/7 support.


It starts at $39.95 per feature for one-time payments.

Pro Writing Aid

The Pro writing aid tool has a wide variety of purposes. It is an overall solution for all the assistance required in content writing. It is specially designed to meet the diverse needs of each user. It is also an AI-controlled punctuation checker to reduce errors.

It provides alternative suggestions, which helps to ensure a better sentence structure and writing style. It also underlines errors in yellow for easy identification. The Pro-writing aid tool easily coordinates with other word documents such as MS- Word and Google Docs. Its free version is also quite effective as it works pretty well for a free plagiarism checker.

Key Features

  • It allows integration with Word, Chrome, Google Docs, Gmail, and more.
  • It supports a wide range of files.
  • It provides you with alternate suggestions to improve both your sentence structure and your writing style.


It starts at $70.00 per feature per year.


It is essential to avoid plagiarism, not only because those found guilty might face legal sanctions but also to foster and enhance creativity. If plagiarism is encouraged, many writers will lose interest in writing for fear of their having work copied. It is, therefore, of utmost importance that these different plagiarism checker tools are maximized. It will ensure that plagiarized works are reduced and that grammatically correct and updated articles are consistently circulated on the internet.

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