15 Best Essential Plagiarism Checker Tools in 2021

Best Plagiarism Checker

Hi everyone, Hope you all are fit & fine. If you are Looking for the best Plagiarism checker online tools. I will explain to you the top 15 free best Plagiarism checker online tools it will help you to keep your content plagiarism-free. The Proofreader tools will help you in comma correction or any grammar mistakes. It is one of the most severe issues for writers they face while they check students’ assignments. A copyright checker is for everyone who needs to avoid copied content in their writing. Plagiarism checker is worthwhile if you want that your article gives quality content to the user.Plagiarism Checker

What is Plagiarism?

Plagiarism is defined as when you copy another person’s work and to said that it’s your work that is Plagiarism. There is an increase in demand for the  Plagiarism Checker software because of these reasons. If you want to write, make sure that your content is plagiarism-free or high quality. Original content rank better accept copied content. If you copy someone else works, Google will penalize you. Here is the list-

  • Grammarly
  • ProWritingAid
  • Whitesmoke
  • Duplichecker
  • PlagiarismCheck.org
  • Quetext
  • Small SEO Tools Plagiarism Checker
  • Copyleaks
  • Plagium
  • Plagiarism Checker
  • Copyscape
  • Dustball
  • Turnitin
  • Scribbr
  • Unicheck


Grammarly is trusted by many universities like Michigan & Stanford University & Berkley. It is a free & paid version of Best Plagiarism checker. If you are looking for the best detector to Plagiarised your content Grammarly is the best option. 

Grammarly is the World’s most comprehensive grammar & copyright checker tool that can check incorrect sentences & spellings.


  • Grammarly trusted by millions of bloggers, universities, schools, creative people & most essential writers.
  • It can detect your content & tells you the percentage according to your content.
  • It is one place for everything, its a bonus point for everybody.
  • Grammarly emails your weekly performance.

⛔️ CONS:

Grammarly for free

I am Personally using Grammarly for the last six months. It has no cons.


ProWritingAid is best for novelists & creative writers. It will check your grammar, style issues & punctuation. 


  • It works inside MS Word.
  • Prewriting ad is Compatible with all browsers.
  • It can check full-length manuals, manuscripts, and even novels.
  • Integrated with Scrivener and Google Docs.

⛔️ CONS:

  • Pricey $10 for ten scans/month.
  • Best plagiarism checker
  • Grammar checker based on writing style

    pro writing aid

Whitesmoke Plagiarism Checker 

Whitesmoke is the best plagiarism checker software that is very accurate. It is trusted by many & can scan billions of online web pages & check your copied content. It is not a famous plagiarism checker tool like Grammarly.


  • Whitesmoke Scans your content with billions of pages to detect copied content in your article.
  • It is available online, effortless to use. 
  • One of the Best plagiarism detectors.

⛔️ CONS:

  • It doesn’t have as large a database as Grammarly
  • According to your need, you can choose because there are no cons of white smoke like other best plagiarism checker tools.



Duplichecker is one of the topmost free plagiarism checkers for every writer. It doesn’t cost you a single penny if you check your content. If you write a lot of content for the blog, then Duplichecker is the best option for you. Just copy-paste the text & prevent the Plagiarism of your content. It is free to use. You can use only 1000 words for Plagiarism.


  •  It is entirely free to use for the detection of copied content.
  •  Best for teachers, students, and young writers.
  •  Very easy to use.

⛔️ CONS:

  • You have to create a free account if you are doing more than then search limit.
  • Search 1000 words at a time.

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PlagiarismCheck.org is a helpful tool for teachers, content writers & students. It is beneficial for you before submission. You can review your Plagiarised article.


  • Best plagiarism software to check copied content you miss out while checking your article manually.
  • A paid tool that offers a single free trial of its plagiarism detection so that you can see what matches your content. 
  • Supports multiple formats like PDF, RTF & Word Doc in this tool.


  • It is not cheap costlier then Grammarly.
  • Plagiarismcheck.org doesn’t warranty helpful as you are thinking.



Just copy & Paste your work in Quetext & check your Plagiarism by quick & can read easily if there is any issue in the article it marks up the headline. It offers you a free trial you can check up to 500 words.


· It has an in-built feature to help you correctly.

· Free trial for testing.

⛔️ CONS:

· Offers you a free trial you can check up to 500 words

· You can use it to buy a monthly subscription only.

Quetext Plagiarism checker

· Many users complain about their wrong positive results.

SmallSEOTools Plagiarism Checker

SmallSEOTools is unique in his way. You can get several tools with highly premium features. People will surely love it because it is free of cost. Small SEO tools can help you to detect your copied content within seconds. It will highlight your range in red color. It is not as powerful as Grammarly.


  • Very simple free online best plagiarism checker only for students.
  • In smaller tools, you can upload your document from the google drive & dropbox. 

⛔️ CONS:

  •  Not more significant as compared to other plagiarism checkers.



There is competition in the market. Copyscape’s worst competitor is Copyleaks. It is a copyright protection tool that not only scans your duplicate content. Copyleaks best plagiarism checker works better for teachers allows you to check 100 pages at a time. You are entitled to search for only 2500 words monthly unless you don’t buy paid copy leaks.


· Check your 100 pages in a single time best for teachers, as I told you above.

· There is a mobile app included in the copy leaks.

· Built-in translations included in this plagiarism checker.


· Limit up to 2500 words monthly.

Copyleaks, Copyright checker, plagiarism checker, plagiarism detector, plagiarism detector free, plagiarism detect

· In the Paid version, you can check 100 pages.


In Plagium, there are limited options; otherwise, it performs well. Just copy-paste your article & click ok to scan for Plagiarised content. It is used only for web content. It will help you check your two documents’ plagiarism, which can detect the same content in both forms.


Just check your content directly on the web by click on the above link.

The premium feature of Plagium helps you to compare the article similarity.


You have to signup for paid features & get all access for more parts of Plagium.

When you want profound results, you have to spend some money-free version that allows you to search your article.


Plagiarism checker

Plagiarism checker is one of all best plagiarism checker online tool you can use anytime to check your content just copy-paste in the search box & it detects your copied content.


  • It can check multiple paragraphs in a single time.
  • Then check your live web page for plagiarized content.
  • Create Google Alerts for your content, which allows you when someone copied your content.


  • There is no uploading feature in the Plagiarism checker.


It is just a matter of one second to detect plagiarised content for you in Copyscape. You have to enter the text in Copyscape. It shows you exactly how much your content copy or not from other sites. Copyscape helps you who stole your content & publish it on their blog.


  • Copyscape interface is straightforward to use.
  • In this, you can scan your entire website best for bulk checking of your content.
  • It can detect copied content & provide you badges for your site.

⛔️ CONS:

  • The integration of WordPress is chargeable in Copyscape.
  • Very expensive for beginners depend upon the words of your article.



You have to put your text in the box in Dustball & enter the hit button it will show you the copied content in your work. It is free to use. Dustball has paid version also & claims you to give you 3x more accurate data according to your search & its worth buying a premium version.

Plagiarism checker


Turnitin software is used by academic professionals teachers & students to check their content duplicacy. The main feature of Turnitin to empower the students to grab up any content with full power confidence.


  • Its paid plan is 2300 rs per student a year.
  • It helps you in Grammar check & your spellings.

⛔️ CONS:

It supports multiple languages Japanese, Korean & Chinese.



Scribbr proofreading can edit your thesis or your content according to your need. If you want to become a pro writer, then I recommend using scribbr for free  & best plagiarism checker or copied content & you can generate a list for free.

Scribbr plagiarism checker


Unicheck is an alternative of Copyscape & all Plagiarism checker for all writers for copied content. It checks all web pages to check the originality of your content. Unicheck comes with API access Gsuite add on, Office 365 & Google docs for easier access. The best tool for academies & institutions.


  • Very easy to use.
  • You have the privacy; it doesn’t save your work.
  • Budget-friendly for students & affordable for all.


  • There is a limit of words in the free version.

    Unicheck Plagiarism checker


Here I explain 15 best free essential plagiarism checker tools. I hope you use the best means according to your work if you want any other information regarding any tools comment below in the article.



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