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Best Free Plagiarism Checker Unlimited Words

Many people do not know what constitutes plagiarism. Some believe that paraphrasing is all right while others believe that it is entirely wrong to use other people’s work without giving them the credit they are due. With the advancement in technology, many use different writing tools to make their work sound more interesting without knowing how much of their own work they are using while others know exactly what they are doing while using these services. In the world of content creation, plagiarism is a big issue. If you read my blog post on 9 legitimate ways to make money online, you know that I’m a huge supporter of helping people create quality content. It’s hard to stand out in the world of internet noise due to the fact that anyone with a computer can write a piece of content and submit it. This means it’s up to you as the content creator to ensure you’re not only creating unique, quality content that your readers will enjoy, but also that you’re not plagiarizing someone else’s work!

Plagiarism checker is the best plagiarism tool, a free online plagiarism detector which can quickly detect and highlight all possible plagiarisms in a document. By using this free plagiarism checker you have the option to check any word or sentence from any source.

Dupli Checker

This is one of the most effective free plagiarism detection tools on the Internet. While it doesn’t have a fancy interface, it certainly gets the job done well.

Dupli Checker is a handy application that allows you to check whether the files you are about to send or receive are duplicates of each other.

Dupli Checker searches the Web for identical files and displays a list of results. You can then choose which file to keep and which one should be deleted.


  • Free Of Charge
    You don’t have to pay anything. Whether you are a one-time user or plan to make the most of this free plagiarism detection tool on a daily basis, you are not required to pay for a subscription.
  • Ease Of Use
    You are presented with a very basic, functional layout that does not require for any previous experience with plagiarism detection tools.
  • 2 Ways To Check For Plagiarism
    Duplichecker enables you to either copy and paste your text in the field and then check it for plagiarism, or upload a Docx or Text file from your computer.
  • 50 Plagiarism Scans Per Day For Registered Users
    If you sign up for free, Duplichecker allows you to do 50 plagiarism checks in a single day.


  • 1 Search Per Day For Unregistered Users
    If you choose not to indulge in a free sign-up then you are limited to only 1 plagiarism check per day.

Plans And Pricing

  • No paid version is available.


This cloud-based authentication platform enables you to track how eLearning content is being used all around the Internet.

Copyleaks is a platform that allows you to crowdsource content. You can use it to create new content, or find and share content you already have.

If you’re looking to create new content, Copyleaks makes it easy to get started with an easy-to-use interface and a wide variety of templates. You can also collaborate with other users on your projects. If you’re looking for existing content, Copyleaks lets you search by keyword, topic, or author name to help narrow down your search results.


  • For Education And Business
    Different sections on the platform for educational and business purposes. The business section addresses to publishers and SEO agencies, while the education section to schools, students and universities.
  • Multiple File Formats And Languages
    Copyleaks is able to scan content in various file formats and all Unicode languages.
  • Variety Of Tools
    Copyleaks allows you to use the API tool to search for plagiarized eLearning content all over the Internet. It also offers a mobile app along with an MS Office add-on, which you can use to check for plagiarism as you are writing a document on MS Word.


  • You Can Use It Only After You Sign Up
    Unfortunately, you need to create an account for free first, in order to search for plagiarized eLearning content.
  • Free Page Restriction
    Only the first 10 pages are for free.

Plans And Pricing

  • For Businesses
    If you sign up for free you are allowed to check 2,500 words per month. There are flexible subscription plans starting from $9,99 per month to check up to 25,000 words without day limit. You may also choose to give a prepaid amount of money once that corresponds to specific number of words to be checked monthly.
  • For Education
    The Free package works the same as for businesses. Starting from $10,99 you can check for up to 25,000 words. The prepaid option for business, is also available here.

ProWritingAid (with 25% discount)

ProWritingAid’s online plagiarism checker tool is one of the best in the market. It helps to check for copied content in manuscripts, novels, or literary works.

ProWritingAid is the best website for plagiarism checks for authors/creative writers.

Besides being a trusted plagiarism software, ProWritingAid shows up as your writing coach. It detects grammar errors, style issues, and over 20 different mistakes that authors and editors are likely to make.

ProWritingAid is a writing tool that helps you produce high-quality, error-free content. It’s like having your very own editor at your side, who never needs a break and never gets tired of your jokes.

ProWritingAid is a web-based writing tool that helps you write more clearly, concisely, and accurately. It uses artificial intelligence to find errors in grammar and style and provides suggestions for improving your writing. It’s like using Google Docs but with an actual professional copyeditor who lives inside the program!

ProWritingAid’s AI engine pulls in data from millions of published articles to help it identify and fix errors. The program also learns from your own mistakes as you write more documents; after each edit cycle, the program remembers which errors you’ve made in the past and makes suggestions based on those patterns.

The program comes with a free trial period so that you can see if it works for you before deciding whether or not to purchase it for longer periods of time.

Check out my detailed ProWritingAid review to know why it is one of the perfect Whitesmoke alternatives out there.


  • ProWritingAid offers you a lifetime deal that makes it the best choice because it saves you from paying a recurring amount like other tools.
  • Checks for plagiarism directly from MS Word via the add-in.
  • Works fine with Scrivener and is the best plagiarism checker for Google docs.
  • It efficiently detects even 10% plagiarism in your manuscript.


  • I personally prefer the UI of Grammarly over ProWritingAid. Other than that, I think it’s just as good as Grammarly and do not see any cons as of my one-year of experience with it.

Try ProWritingAid Now ››

Please Note: Use the code “GYD1925” to claim your ProWritingAid discount coupon and save a whopping 25% OFF your purchase.

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Whitesmoke Plagiarism Checker (Best Plagiarism Checker for Teachers)

Whitesmoke is one of the top plagiarism-checking software that is very robust and accurate. Besides being a grammar checker and proofreader, Whitesmoke’s anti-plagiarism software is trusted by many.

Whitesmoke scans billions of online web pages and resources to check for unoriginal content or copied content in your document and displays the same.

Whitesmoke Plagiarism Checker is a free online plagiarism checker that detects plagiarism in over 40 languages. This tool checks your work against billions of web pages, as well as against academic papers, books, and other documents. You can use Whitesmoke to check for similarities in sentences, paragraphs, or entire documents.

Whitesmoke will alert you if it finds any matching text or identical passages in the document you are checking. The tool also provides information about the sources it used for comparison, including the number of matches and where they occur.

Whitesmoke online plagiarism checker isn’t as famous and efficient as Grammarly’s but makes a great alternative if you want to try out. With browser, MS Word, and Outlook integrations, it takes your content analysis to the next level.


  • Scans and matches your essay with billions of web pages to detect similarities in your essay.
  • It is cross-platform supported and also available online so its easy to use.
  • Best plagiarism checker for research papers.


  • Doesn’t have as large a database as Grammarly
  • There are not many cons of Whitesmoke so you can choose it safely.

Try WhiteSmoke Now ››

Duplichecker: Best Free Plagiarism Checker

Duplichecker is one of the best free plagiarism checkers for teachers and writers. Duplichecker does not cost a dime so it’s handy if you want to check your writing/school assignments or student submissions on the go.

If you outsource of a lot of online content (blog articles) from freelance writers or you are preparing an academic essay, thesis or any other assignment then Duplichecker is a must have in your content arsenal.

With Duplichecker, you need to just paste the text in the text box on the top of the page and hit “check for plagiarism” button. You can also upload a Word Doc if you prefer it that way.


  • Duplichecker is a free online tool to detect plagiarism so you can use it to your heart’s content.
  • It provides over 50 scans for duplicate content each day which is makes it ideal for teachers to bulk check essays/papers.
  • Duplichecker is very easy to use hence there is no learning curve.


  • Each search is limited to 1000 words.
  • You require to create a free account to have more than one search per day.

Recommended readings: Free duplicate content checker is a reliable plagiarism checker tool that focuses on helping teachers, students, online content creators. is a free plagiarism checker that checks for copied content in documents, and also offers a word count tool for students to monitor their writing. is an easy-to-use tool that allows you to check your work for plagiarized content. It’s available 24/7, and all you have to do is paste your text into the box on their site—no downloading or uploading required! You’ll get a percentage report back telling you how much of your work is original, how much is copied from somewhere else, and what parts need more work before they’re ready to be submitted to your teacher.

If you want to use this tool without actually checking anything yourself first (so you can just let do it), there are options on their site where you can upload an entire file instead of pasting text into a box—just choose “Upload” instead of “Paste” when using this tool.

The word count tool on is another helpful feature for students who are working on writing assignments and need some guidance about how long their papers should be

It is extremely useful if you want to review your own submission for plagiarized content (unintentional plagiarism) before submitting it to your college professor or content authority.

After you upload your writing, PlagiarismCheck scans and matches your content with a regularly updated database of writing. It then marks the unoriginal content and generates a report of plagiarized content.


  • It is an efficient anti-plagiarism checker or software to check plagiarism that you miss while checking manually.
  • Even if it is a paid tool, it offers one free trial of its plagiarism checker so you can use it to see if it matches your expectation.
  • You can upload multiple file formats like Word Doc, PDF, rtf, etc directly to the tool.


  • It introduces its paid version after the first free trial.
  • is not cheap. With $0.30 per 275 words, it comes out as even costlier than Grammarly which has a LOT more to offer.
  • It clearly mentions, doesn’t warranty the score so it is not helpful if you’re planning to file a lawsuit for duplicate or unauthentic content.


For covering up papers, dissertations, tests, and all sorts of other pieces of academic writing, there are no better solutions than free plagiarism checkers for students. You should be happy to learn that you have several different options for this purpose. However, finding an impeccable one can be quite time-consuming even if you are already familiar with the differences between plagiarism detecting softwares.

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