10 Best Plagiarism Checker Software for PC

Pick the best plagiarism checker for Windows 10

by Radu Tyrsina
Radu Tyrsina
Radu Tyrsina
CEO & Founder
Radu Tyrsina has been a Windows fan ever since he got his first PC, a Pentium III (a monster at that time). For most of the kids of... read more
Reviewed by Vlad Turiceanu
Vlad Turiceanu
Vlad Turiceanu
Passionate about technology, Windows, and everything that has a power button, he spent most of his time developing new skills and learning more about the tech world. Coming... read more
Affiliate Disclosure
  • If your work depends on the original content, it is important to use the one of the best anti-plagiarism software.
  • A plagiarism checker software is primarily an app that helps you prevent plagiarism and properly protect your copyrights.
  • An authentic content will not be able to be overlooked by search engines, which you can use to improve your marketing strategy!
What is the Best Plagiarism Checker Software

Plagiarism checker software helps you verify the quality of your writing to make sure it’s original content. These tools are indispensable to SEO marketing, journalism, research, and academics.

If you’re a freelance writer, for example, you need professional software to detect plagiarism. Otherwise, copied materials can become your downfall.

In this article

Why do I need a plagiarism checker?

Copyright laws are very strict in most places and if you don’t focus on the originality of your content, you risk facing harsh consequences such as getting discredited if you are an academic, or a get search engine ban if you work online.

Even though you try your best to cite your sources and produce original content, the smallest of errors such as a bad citation can recognize your text as plagiarism.

Since your career depends on writing genuine content and search engine rankings. you will definitely enjoy the perks of using such tools to facilitate your work.

Anti-plagiarism software are great time savers and can often provide better reviews than human proofreaders as their AI-based technologies don’t miss as many important details as we do.

In this article, we selected what we think is the best plagiarism checker software for PC. Here it is:

What is the best plagiarism checker software?

Grammarly plagiarism – Best spelling and grammar checker

Grammarly needs no introduction. It’s the most famous grammar checker tool to this date, ideal for work, personal projects, and academic writing.

However, few people know that Grammarly includes powerful plagiarism checker software that verifies over 16 billion web pages. The only issue is that it’s only available for Grammarly Premium users.

Grammarly’s plagiarism checker uses ProQuest databases to detect major similarities between your text and thousands of published works from various academic fields. 

Along with that, it scans the internet for plagiarized content, verifying over 16 billion websites to make sure that the work you want to submit is as original as possible.

Grammarly can be your go-to software solution for writing, regardless of the type of text. Besides the spellchecker and plagiarism checker, it also offers plenty of useful features that help you improve your work. It detects text style and suggests adjustments based on your specific goals.

The software has a large dictionary database that is used to detect spelling mistakes, but also syntax problems. Grammarly can suggest style improvements to avoid repetition, cluttered phrases, and other similar issues.  

When it comes to minor errors such as typos, the tool detects them within seconds and automatically suggests in-text improvements. This way you can focus on the content of your work without stressing too much about easily detectable and fixable problems.

Grammarly Premium provides a comprehensive toolset that writers of all types can make great use of. The software also has a free version that has some limitations.

You can install it as a browser plugin, use it directly on the website, or download the app to your computer.

Other key features include:

  • Gives suggestions based on the target audience
  • Clarity suggestions
  • Readability and vocabulary feedback
  • Create a custom dictionary associated with your account
  • Native app for PC and MAC

Grammarly plagiarism

Get a taste of accurate, stylistically appropriated, and plagiarism-free writing with Grammarly!

QuillBot Plagiarism Checker – Great for multiple file formats

best plagiarism checker software for PC

QuillBot is known for its spellchecker and paraphrasing tools and it’s no surprise that it also offers a worth-trying plagiarism checker.

To check your documents for plagiarism, you have to upload them to Quillbot. It supports multiple types of formats including txt, docx, pdf, and HTML.

The tool will then use its algorithm to check whether your document has similarities with other documents in its database. 

It will then offer you easy-to-follow feedback, letting you know where you lack proper citations or whether your text has been copied/paraphrased from somewhere else.

The report gives you an accurate plagiarism score, letting you know how much of your data corresponds with data found in other sources and at which point is it time to take action and change it up.

Another worth mentioning tool for our international readers is that Quillbot is capable to check for plagiarism in over 100+ languages, including Spanish, French, Japanese, Chinese, and Arabic.

For those of you worried about uploading the documents, we must state that Quillbot has a transparent privacy policy that’s available to read on their website.

It states that they only store your data up until the algorithm checks it. Once you are done adjusting your document, it will be permanently deleted from their database.

One thing that may be a setback if you plan to check large-sized documents is the fact that the app only lets you scan 20 pages per month. If you need more, you will have to pay an extra fee.

The plagiarism checker is a premium tool of Quillbot, so you will have to get a subscription plan in order to use it.

The monthly fee is however not much and premium users get additional benefits that include faster processing speeds, compare modes, and advanced grammar rewrites.

Other key features of QuillBot Plagiarism Checker include:

How we test, review and rate?

We have worked for the past 6 months on building a new review system on how we produce content. Using it, we have subsequently redone most of our articles to provide actual hands-on expertise on the guides we made.

For more details you can read how we test, review, and rate at WindowsReport.

  • Cross-checks with web pages, books, research publications, and academic papers
  • Fix the issues found with the Quillbot Citation generator
  • High-accuracy detects paraphrased plagiarism
  • User-friendly and cross-platform app

QuillBot Plagiarism Checker

Use QuillBot’s powerful algorithm to thoroughly check your documents against thousands of resources.
Check price Visit website

Plagiarism Checker X – Great graphics representation

Plagiarism Checker X is one of the best choices when it comes to plagiarism software. It has an intuitive interface, straightforward options, and uses a large database to check for text similarity and original content.

This is another great choice regardless of your field. It provides assistance for students, teachers, writers& journalists, and digital marketers.

Plagiarism Checker X supports multiple document file formats, including MS Word Documents (.docx, .doc), .rtf, .pdf and also plain text. You can easily upload your files and get a plagiarism report right away.

If you suspect that a document has similarities with another specific document, you can use the Side by Side Comparison feature. This analyzes and finds similar and duplicate content within two specific files.

This can save you a lot of time as you won’t have to go through the whole document all over again and only check the report provided by the software.

Another feature that is especially useful for teachers is the Bulk Comparison. You can import multiple documents and run a plagiarism scan across all of them in just a few minutes.

Plagiarism Checker X also has options for digital creators. If you blog, you can use this software to scan across the web for content that is similar to your text. This can save you from getting banned from search engines as you can quickly adjust your text for better originality rates.

Plagiarism Checker X has a free fully functional edition with limited features. It also has premium options that come with a lifetime license. 

Other key features include:

  • Offline side-by-side comparisons
  • Copy/paste option for text insertion
  • Keyword analyzer
  • Percentage reports of similarities

Plagiarism Checker X

Take your writing to the next level and always stay authentic with Plagiarism Checker X!

ProWritingAid – Ideal for writers

ProWritingAid is more than a grammar checker – it’s an all-in-one writing mentor designed to enhance your writing through unique suggestions, presented in a fun and interactive manner.

Just as writing is more than just grammar, ProWritingAid stretches its focus beyond basic punctuation and conjugations, covering your style, tone, and approach to help you deliver an original, unique, and consistent piece of content.

This tool gives in-depth reports that go beyond grammar, spelling, and syntax. It can analyze your style, check for overused words and phrases, identify alterations, and much more.

When it comes to plagiarism, this tool performs advanced scans across the web. It looks for similarities in over a billion web pages and articles to make sure that your text is original and well cited.

Another smart and useful feature of Pro Writing Aid is the Cliches and Redundancies Report. Often times good information gets lost in way too many phrases.

Redundant pieces of text can drive away even readers that are genuinely interested in the topic of your text. This feature ensures the creation of quality, engaging content.

Pro Writing Aid can also detect the writing style of your text and make sure that you follow it across the whole piece.

It detects any tense inconsistencies, bad wording, overuse of the passive voice, and more. It helps you create an easier-to-read text, whether you are an academic, blogger, or student.

This software integrates many popular tools such as Google Docs, Microsoft Office, Scrivener, and Essay Checker.

Pro Writing Aid is a paid service. You can either get a subscription with monthly or annual charges, or a lifetime license with all updates included. It does provide a free trial upon an email request. 

Let’s quickly look at its key features:

  • Automatic suggestions on style improvements to accelerate your editing
  • Eliminate style inconsistencies (vague expressions, passive voice, repetitiveness, and more)
  • Check and address spelling and grammar errors instantly
  • Contextual adaptation through the word explorer and thesaurus
  • Intelligent pattern detection to eliminate common mistakes
  • Highest privacy standards and fully GDPR compliant


Become a better writer while still staying true to your style with ProWritingAid!

Copyleaks – Ideal for academic usage

Copyleaks prides itself on being plagiarism checker software powered by AI and machine-learning technology. It can detect paraphrased and similar text.

The tool reaches out to academic and educational environments, as well as to the business and enterprise industry.

Copyleaks can compare two different specific websites. You can get full reports of all individual pages on these two websites and quickly find possible copyright infringement.

On that note, the software also allows you to compare different types of documents. You can upload and compared files of different formats such as .docsx, .pdf, .xls or .ppt. 

Copyleaks can also detect plagiarism in image files with advanced optical character recognition technology. The software can understand the written content in an image and report when it finds risks of plagiarism.

Another really useful feature provided by Copyleaks is the multiple language support. The software can scan for plagiarism across different languages.

Copyleaks is a paid product that offers two different plans: Academia & Education and Business & Enterprise. 

Let’s quickly look at its key features:

  • Compare any two files for text similarity
  • Offline mode to find duplicate files
  • Stores your data in the cloud but doesn’t expose it
  • Download reports with plagiarism detection results
  • Integrates with Microsoft Word and Google Docs

 Get Copyleaks

Free Plagiarism Checker – Fast plagiarism checker

If you’re looking for a fast way to check your text for duplicate content is to use the Free Plagiarism Checker app from Study crumb.

It is so easy and quick to use that you will be amazed because the results will come in just a few seconds.

Just type a title of at least two words, then paste your text of between 100 and 500 words and hit the Check for plagiarism button.

The web tool detects accidental plagiarism and exact-match content but ignores commonly used phrases and citations.

And the best part is that you can check as many texts as you like for free and totally unrestricted.

It confronts your writing with billions of online resources, including academic periodicals so you will be sure that you won’t have any trouble submitting it.

Moreover, your document will not be stored anywhere and it will be deleted as soon as you leave the page.

Check out its key features:

  • Fast and easy to use
  • Complete confidentiality
  • A huge database of online resources
  • Free to use, without any restriction
  • 100 to 500 words check at a time

Free Plagiarism Checker

This amazing web tool will confront your text with billions of resources to make sure there are no duplicates.

Turnitin – Great for students

Turnitin is one software that focuses on integrity which is one of the reasons it’s so amazingly popular in academic environments.

The tool is quick to identify plagiarism by comparing sets of content against the largest collection of digitalized academic materials and highlighting similarities.

The Similarity tool provided by Turnitin checks offers comprehensive plagiarism reports. It compares your text against active and archived web pages, works included in the Turnitin repository, periodicals, journals, and other publications.

The reports generated by this tool give in-depth information about the results of the plagiarism scans. The similarity score is the percentage of the plagiarized content within your paper. 

Turnitin Similarity categorizes plagiarized content in two categories: matches and sources. Matches are texts that are not completely identical, but very very similar. The sources are identical pieces of text that come from other papers.

These can be of great help because you need different solutions to fix your paper. A source can be fixed with the right citation, while a match needs further reading and more original content.

Turnitin Similarity is a great choice for students as it is compatible with multiple learning tools such as Blackboard learn, Brightspace, MS Teams, and Moodle.

Turnitin is a licensed-based software that targets academic institutions. You can’t get it as an individual user if your school doesn’t use it.

If you represent an institution and want to use it, you can do that by filling a request form.

Let’s quickly look at its key features:

  • Effective plagiarism detection solution
  • Implement authorship based on data-driven insights
  • Feedback and grading features to facilitate instructional dialog
  • Educational, creative resources to enhance academic skills (blogs, guides, white papers, and more)

Get Turnitin

Scribbr – Fast and accurate

Scribbr is an education-oriented tool that compares your document to an impressive database. It scans across over 91 billion active and archived web pages and millions of other publications.

Besides that, users can also add their own sources to the checker. If you used small independent publications or unpublished papers as your source materials, you can upload them into the checker and compare them with your paper.

It has up-to-date technology that fights against fake plagiarism alerts. AI-generated scans are never full proof, and there is always a risk of a false positive. The software scan ignores commonly used words and phrases, as well as reference lists.

Moreover, you can tweak the settings to exclude specific papers or databases, change the threshold for small matches, or ignore certain types of similarities.

The report provided by Scribbr offers an overall percentage of similarity along with a list of all the sources found in your text. The plagiarized paragraphs are highlighted and you can click them to see a side-by-side comparison with the source text.

This software is also a great option because it has clear confidentiality policies. Some plagiarism software automatically enrolls any text within their database to improve their scores. Scribbr does not do that and lets you delete your document after you get your report.

Scribbr is a paid service that charges based on document size. It has 3 different options and also custom plans for institutions. 

Other key features include:

  • Agent support from plagiarism experts
  • Detects plagiarism across 20 different languages
  • Support for institutions and individual users

Get Scribbr

Plagramme – Designed for students

Plagramme is a similarity checker with an ever-growing customer base. It is greatly appreciated for features such as paraphrase detection, quote correction, and the extensive source database.

This tool is mainly targeted toward students and teachers, but it can be used with no issues by other professional writers because it is equipped with the tools to check for similarities across all fields and types of sources, including web-based content.

Plagramme offers to users detailed reviews of their texts. Its up-to-date detection technology gives you separate scores for similarity, plagiarism risk, paraphrase score, improper citations, and matches. The similarity score is the overall percentage, while the others are more specific.

Users can easily identify each of these issues within their text because the tool highlights them in different colors. You can also get links and side-by-side comparisons with the sources found during the detection process.

Palagramme has a very large multi-language database that covers over 129 languages. It can easily detect translated text, paraphrases of the translated text, and other similar issues. It is reportedly recognized as the national anti-plagiarism tool in multiple countries.

Improper citations can also create problems with your paper. Palagramme takes care of these as well. It detects all citations and uses highlights for feedback.

Green highlights mean that your citations are correct, and purple means that you need to adjust them. 

Plagramme is a paid service. It charges based on the size of your text. You get to try it for free for a limited-sized text.

Other key features include:

  • Sharing options between students and teachers
  • Free plan  for teachers
  • Multiple language interface

Get Plagramme

Dupli Checker – Great file format support

Dupli Checker is a web-based anti-plagiarism software. It is very easy to use and intuitive and offers multiple options for inserting your text.

You can either paste your text from your original document and insert it in the textbox on the main page, upload the text file (supports .tex, .txt, .doc, .docx, .odt, .pdf, .rtf), or insert a webpage url.

Dupli Checker works in a similar manner as the other software in this list. It digs across its database for similarities between your text and previously published content. It can be used for all types of text, including academic papers, blog posts, or essays. It provides percentage-based results.

This software also vows to protect your privacy. It does not save the documents you upload and makes sure to delete any trace of them once you are done checking the results.

This tool also has a grammar checker feature that highlights any misspellings or grammar errors.

It can detect text similarities across 7 different languages. It can detect translations and risky paraphrases on the web and across multiple types of publications.

Dupli Checker has an automated feature that can help you improve your text. The Make it Unique feature can rewrite your text in a plagiarism-free manner. This can be a really good time-saving option.

Dupli Checker is a free tool. It can be used right away, without any registration. You only need a good Internet connection. 

Other key features include:

  • Super fast detection
  • Highlights plagiarized paragraphs with color-coding 
  • Identifies duplicate sentences and phrases

Get Dupli Checker

In the tech age that we live in, a plagiarism checker software tool is really necessary for copyright protection. In many cases, plagiarism can result in lawsuits, criminal charges, and sometimes even imprisonment.

Even if you commit unintentional plagiarism, it will still be viewed as plagiarism in the eyes of the law, and this is very important to remember.

Use one of these trusted tools, according to your needs, and eliminate the risk of being penalized for plagiarism.

By using plagiarism software, you will be able to make sure that your content is 100 percent original.

You might also be interested in our selection of the best automated proofreading software because it will help you with your academic work.

We hope that our recommendations were helpful to you. For more suggestions, please access the comments section below.

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