best plagiarism checkers

TL;Dr: Here's a list of the best plagiarism checkers that will be further reviewed in this article:

  • Grammarly Pro: Best plagiarism checker for students
  • Whitesmoke: Best plagiarism checker for teachers
  • Turnitin: Best plagiarism checker for research papers
  • Scribbr: Best plagiarism checkers for academics
  • Unicheck: Best plagiarism checker for research scholars
  •  Best plagiarism checker for digital marketers 
  • ProWritingAid: Best plagiarism checkers for creative writers


Using someone else’s words and pushing them off as your own isn’t borrowing, but plagiarism.

Enter: Plagiarism checkers, tools that help avoid exactly that.

Basically, plagiarism checkers scan content and find if they’ve been copied from hard (read: books, journals, etc.) or soft data (read: online content, etc.)

But what’s the best plagiarism checker in 2022?

Well, every tool is good in its own way, but there are a few that stand out from the rest.

In this article, I cover some of the best plagiarism checkers and further review it to tell you exactly what’s good and bad about them.

So let’s get started.

Comparison Table: Best Plagiarism Checker in 2022
Character Limit100,00010,00025,000 – 30,000 (Avg)7500- 50,00012500020002000+
Online Database1.7 billion-plus websites1.7 billion-plus websites1.7 billion-plus websites with iThenticate91 billion websites and 60 million publications91 billion web pages 1 billion web pages1 billion web pages 
Offline DatabaseYes (collab with ProQuest)NoneYes (Proprietary database)NoneNoneNoneNone
Response Time5/53.5/52/55/54/5
Additional Features5/53/51/53/53/54/5
Use case scenarioBest plagiarism checker for teachers, college studentsBest plagiarism checker for teachers, and research papersBest plagiarism checker for students and research papersBest plagiarism for students and academicsBest plagiarism checker for academics Best plagiarism checker for bloggers Best plagiarism checker for businesses

What's the best plagiarism checker in 2022?

1. Grammarly Pro (best plagiarism checker for students)

Grammarly best plagiarism checker for students

With Grammarly plagiarism checker, you can not only check other websites for similar content but also against hardcopies such as books and other publications. Grammarly also has the most significant character limit so you can run checks on the biggest documents with it.

Grammarly is the highest-rated tool that can be used for punctuation checks, grammar checks, and even plagiarism checks. There is a proofreading service that is available at the click of a button for double assurance.

On another note, check out my Grammarly premium review for a more in-depth review of this software.

Who is Grammarly for?

Grammarly is a plagiarism checker for students, and teachers and most people looking to up their content can benefit from Grammarly as its functions extend beyond plagiarism into content, punctuation, and even vocabulary checks.

Key Features:

  • Grammar and punctuation
  • Spelling check
  • Writing style recognition
  • Repetition of words
  • Active – Passive Voice tracker
  • World-class thesaurus

Best reasons to get Grammarly Pro.

Reason 1: Lighting fast plagiarism checks

Grammarly holds one of the fastest speeds when it comes to checking your content for plagiarism. Once you import the content, you get your work checked quickly, sometimes within seconds.

With Grammarly, you also get to see your punctuation, grammatical, spelling errors—and you even get to see suggestions to replace them to the most suited for their contexts.

Reason 2: Largest offline database

No other plagiarism checker out there offers what Grammarly has to offer. The collaboration with Proquest allows you to check a big offline database of different publications and contents.

Turnitin does this too, but they do it with their database which is more focused towards checking for plagiarism with other student assignments and research papers.

Real-time plagiarism checkHigh accuracyProquest collabOne-click proofreadingCan get expensiveNo flexible packages

Pricing Plans 

Apart from the free version, Grammarly offers premium and business plans.


  • Annual – $12/ month
  • Quarterly – $20/ month
  • Monthly- $30/ month

The business plan comes at $30/month for 2 members. You have to pay an additional $15/month for every new member.

2. Whitesmoke (best plagiarism checker for research papers)

best plagiarism checker for research papers

Whitesmoke will review your material for plagiarism through online content. They scan through 1.7 billion webpages, just like Grammarly Pro. The downside is that they do not have any system to check for plagiarism with offline publications.

Also, if you do need additional features such as grammar checker, spell checks, and even other functions, WhiteSmoke is apt. They have good customer support and also provide proofreading services.

Who is Whitesmoke for?

Whitesmoke is a plagiarism checker for students and professional writers who are on a budget. If it is your budget that is your top priority and not the quality of services, Whitesmoke is the perfect match.

On another note, I've compared Grammarly against Whitesmoke in another article.

Also, if your articles are generally small in size and do not exceed ten thousand characters, you should go with Whitesmoke. For any document bigger than that, you should opt for Grammarly.

Key Features:

  • Grammar and punctuation
  • Spelling check
  • Vocabulary enhancer
  • Forbes calls it the #1 tool for writing.
  • TopTenReviews gold award.

Best reasons to get Whitesmoke.

Reason 1: Economically priced plagiarism checker

If you are looking at checking your material for plagiarism from online content, Whitesmoke is a good option. Whitesmoke plagiarism checker has been in business for quite some time now.

Over the years, they have been perfecting their software to offer the best quality plagiarism checks. But you see, unlike Grammarly Pro, Whitesmoke does not have a collaboration with any other third party to check for plagiarism from offline publications.

Reason 2: Good additional features

WhiteSmoke is a one-stop-shop for all writers, which helps you check for grammar, spelling, writing style, and punctuation. It has invested millions in developing Natural Language Processing.

NLP and various other proprietary algorithms try to learn your style and suggest improved changes which match your fashion of writing. It could be professional, informal, or even conversational.

Economically pricedA host of features with the business packFree on-call supportMobile app availableNo offline database

Pricing plans 

It offers 3 plans- web, premium, and business. You either buy an annual plan or pay for 3 years at a time.


  • Web- $5/ month
  • Premium- $6/ month
  • Business-  $11.5/ month

3 year plan 

  • Web – $3.47/ month
  • Premium- $5.55 /month
  • Business- $8.42/ month


3. Turnitin (best plagiarism checker for university professors)

best plagiarism checker for college students

Turnitin has been in this game for over two decades now but is more focused on providing a reliable and quality service to the bodies where plagiarism tends to mean much more. Educational institution.

Your grades and in turn your career is dependent on your submissions and no one knows that better than Turnitin. Thus, they go beyond measures to check your submissions for plagiarism. They currently work with 30,000 institutions and have an excellent database.

On another note, check out my other article where I compared Grammarly vs Turnitin for more information.

Who is Turnitin for?

Turnitin is the best plagiarism checker for research papers, and for university professors that want to check students’ authenticity. They review the submissions against all the previously submitted research and assignments.

Turnitin provides the educational institutes a cheaper and simpler solution to check their students' works. It has an extensive collection of offline databases that is focused on all educational related copies.

Key Features:

  • 30 million-plus students
  • Big proprietary database
  • Focused plagiarism checks

Best reasons to get Turnitin.

Reason 1: Highly reliable

Turnitin has its software as well as their staff working on your student’s papers checking for plagiarism. The internal control system is tight, and no bit of plagiarism is going to go unchecked.

They do take their time performing their duties, but you know for sure that their work is almost a hundred percent reliable. So this lets you be worry-free and perform your duties.

Reason 2: Great packages

Turnitin provides very flexible packages to you, best suiting your needs. Generally, people claim that it would cost you around $2-$3 per student per subject annually, but the packages may vary from credit to credit.

Either way, no matter what you teach or how heavy your subject is, you get to choose a great package that suits your requirements and do not have to pay extra for any you do not need.

Focused plagiarism checksBest of institutionsProprietary databaseHighly reliableFlexible packagesHigh turnaround timeCan get expensive

Pricing plans – You can get a customized rate by scheduling a call with their experts.

4. Scribbr (best plagiarism checkers for academics)

Scribbr plagiarism checker software for students

Scribbr partners with Turnitin to provide everything a student and academician needs. The plagiarism checker detects word and phrase matches and also suggests when you have to use synonyms.

It checks your work against 91 billion websites and 69 million publications. You can also upload your other assignments to check for self-plagiarism.

Who is Scribbr for? 

Scribbr is the one-stop solution for academicians. Students and professors will find it super useful.

Apart from plagiarism checking, it also provides other features like proofreading and editing. Plus, you will also get an APA reference generator. Thus, you can create perfect essays and dissertations.

Key features

  • Check your writing against both web pages and publications 
  • Let you upload your previous assignments for comparison
  • Offer proofreading and editing features 

Best reasons to get Scribbr

Reason 1. Huge content base 

Scribbr checks your work against a huge content base. That minimizes the chance of plagiarism. You can be sure that your thesis is original before submitting it.

Reason 2. Citation checking

Citations form an integral part of your text. But not all plagiarism checkers provide the feature of citation checking. Scribbr helps you with your APA citations and ensures all your sources are authentic and up to date.

Supports external sourcesLets you upload your old assignments for comparisonHas a huge content base Not suitable for large teams 

Pricing plans – The cost of the plagiarism checker ranges from $20 to $40 depending on the length of your document. 

5. Unicheck (best plagiarism checker for research scholars)

Unicheck - plagiarism checker

More than 1000 educational institutions worldwide trust Unicheck as their favorite plagiarism checker. It is a perfect tool for large organizations.

It checks your work against 91 billion web pages and library files. So, you can close your eyes and rely on the results. Moreover, the results come in a simple interface and won’t overwhelm you.

Who is Unicheck for? 

Unicheck is the perfect plagiarism checker for students and research scholars. It lets you check huge volumes of work and has access to web pages and library files.

Unicheck gives you a smooth experience. It is integrated with Office, Chrome, and Google Docs. So, you can check your text for plagiarism without leaving those apps. 

Key features 

  • Integrated with other apps like Office and Google Docs 
  • Have access to more than 91 billion web pages and library files 

Best reasons to get Unicheck 

Reason1. Supports bulk uploading 

You don’t have to worry about the length of your document. No matter how long your dissertation is, Unicheck will check it for plagiarism.

Reason 2.  Economic pricing 

It doesn’t dig too large a hole in your pockets. The individual plan is super affordable. The plans for institutions and businesses also have a reasonable cost.

Offers numerous features Lets you upload multiple files Integrated with other apps Response time might be slow for some users

Pricing plans 

Both their personal and business plans cost $15 for every 100 pages. And you can get a customized quote if you want to use it for K12 or other higher levels of education.

6. (best plagiarism checker for digital marketers)

Writer - free online plagiarism checker is a good choice if you want to collaborate with your team members. It also offers a free version that you can check before going for the paid ones.

It offers features like autocorrect and autocomplete which make your work easier. Moreover, you can integrate it with other apps.

Who is for?

It is perfect for businesses and agencies. You can work with your team members using its collaboration feature.

Digital marketers and SEO personnel will find this plagiarism checker super useful.

Key features

  • Provide accurate and reliable results 
  • Cost-effective

Best reasons to get

Reason 1. Cheaper than most other tools 

It is cheaper than other plagiarism checkers in the market. If you have just started your business can provide a cost-effective solution.

Reason 2. Let's you collaborate 

You can easily collaborate with your team members on joint projects. Several users can log in at the same time without affecting the loading time.

ReliableCheaper than other tools Relatively new to the market Not suitable for individual users 

Pricing plans

It comes with a free version. And the paid plan starts at $11.99/month.

7. ProWritingAid (best plagiarism checkers for creative writers)

ProWritingAid Plagiarism Checks - best plagiarism checker

It is a good option to check plagiarism if you are on a tight budget. You can try the free version before upgrading to the paid ones.

You can either upload your document or check for plagiarism while using your existing app. Plus, you also get tips to improve your writing.

Who is ProWritingAid for?

It is useful for bloggers and business owners. The editing and proofreading feature also makes it suitable for digital marketers.

However, it is not the perfect plagiarism checker for students and academics.

Key features 

  • Offers suggestions to improve your writing 
  • Integrated with other apps like Google Docs
  • Easy to use 

Best reasons to get ProWritingAid

Reason 1 . Offers writing suggestions 

Creative writers will find the tool useful because it offers suggestions to improve your writing. Apart from checking for plagiarism, the tool helps to improve the readability of your content.

Reason 2. Integrates with other apps 

You can easily integrate it with other apps. So, you don’t have to visit their website numerous times to upload your document. It lets you check for plagiarism while using Google Docs or Office.

Super affordableOffers suggestions to improve your writingEasy to useNot suitable for academic use 

Pricing plans 

You can get a free version. And the paid version starts from $79/month.

Winding up on plagiarism checking software

Every plagiarism checker on this list is good in its own way.

Some plagiarism checkers are great for research papers while others are good for students and even university professors.

However, if you are looking for exceptional features and online cum offline plagiarism check and are not bothered about the price, Grammarly is the best for you.

If you are a student on a budget who is not bothered with the quality of plagiarism check but still needs basic features such as a grammar checker, Whitesmoke is the best for you.

If you are a representative of an educational institution or work with/for them and have extensive plagiarism checks with online and offline focused educational content, Turnitin is the best option for you.

Unicheck is the best option if you are on a budget and want a free plagiarism checker.

Scribbr partners with Turnitin and lets you check huge research papers and dissertations for plagiarism.

ProWritingAid is the best plagiarism checker for bloggers, online marketers, and students. It also offers pocket-friendly prices.’s free plagiarism checker is suitable for brands, students, and universities alike.

I hope this review gives you clarity on which software to narrow down.

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