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The Best Websites to Check for Plagiarism Online

21 Nov 2018

Students and teachers need to make sure that paper hasn’t been plagiarised. It’s a golden rule for college and any other working environment. For students, it's important to check their papers before they submit them, unless they've asked for essay help from a professional writing service, because their assignments run through Turnitin which is a comprehensive plagiarism checker and will check that every single reference is properly cited. We offer a guide on how to check for plagiarism before Turnitin and luckily, today there are loads of websites to check for plagiarism available online. They range from totally free to subscription services. We've rounded up the top ten and reviewed them for detail, interface, reliability, price points, quality, and service to help students when deciding what is right for them.

The Top Ten Plagiarism Checking Websites

We’ve used the same test run content for all sites reviewed below to make sure each review is consistent. Read the guide below and find out which one is best for specific needs.


Our interface is straightforward, free plagiarism checker at compares similarities in a text while providing the source material, so it's easy to review and go back and correctly reference. We have taken inspirations from some of the other checkers available online and made them into an easy to use and informative checker for our own site.

Who Can Use it?

Our tool is ideal for any students that need to check their assignment before submission. We have also developed it, so it can be used for important business documents, PR professionals, or anyone who needs a quality plagiarism checker to make sure their paper has all been referenced correctly from start to finish.

How Much Does it Cost?

Our checker is completely free.

How Does it Check?

We have designed the interface to be as simple as possible and to check your paper for plagiarism for free all you have to do is paste the title and the body of it into the two available tabs onsite. Then, submit your essay and our checker breaks down each paragraph and reviews and offers online sources to all references that have not been mentioned.

Pros and Cons

Pros - user-friendly and correctly points out any missing references.

Cons – Does not have a citation guide.

Small SEO Tools

Small SEO Tools is a little clunky from the offset. There’s a lot of information on the page, which appears confusing initially. But, the service itself is extremely accurate and breaks down the content entered in great detail. It divides the content by sentence and analyses its similarities to other sources and provides matched sources, so if something is plagiarised, go directly to this source and from the Small SEO Tools page.

User Groups

Small SEO Tools is ideal for students, professors, bloggers, content creators, and just about anyone. Students use it to check any assignment for free before submission while professors use it to check students material and bloggers/content creators use it as a guide and to ensure all references have been mentioned in their articles and credit has been given to any outside sources.

How Much Does it Cost?

It’s totally free.

How Does it Check?

There are two tabs one that shows a sentence by sentence overview and highlights whether each sentence is unique or plagiarised. The other is a matched sources tab which provides links to the documents referenced in the text. This is extremely convenient because it offers everything at a glance and makes citing easy because it also provides the source for each sentence.

Pros and Cons

Pros – extremely detailed and easy to use, offers a grammar check, too.

Cons – 1,000 word limit per search so would require multiple searches for bigger pieces of text.


The Grammarly plagiarism checker review offers sleek, easy to use, safe interfaces. There’s a pop-up window to enter text, or upload a file. Grammarly offers plagiarism, punctuation, style, sentence structure, and enhancement checks all in one service.

User Groups

Grammarly can be used by anyone who needs any form of document checked. It’s a useful tool for students at any level and is perfect for content creators because it allows them to check all grammar before submitting to a client. Sending a document with no spelling errors is a big plus.

How Much Does it Cost?

Grammarly isn’t a free service for plagiarism. If a document needs to be checked, then a window offering price plans pop up when a user enters their paper to check. A little misleading, but for a comprehensive checker, this is an excellent choice. A once off monthly subscription is $29.95. A Quarterly subscription is $19.98 (billed as one payment of $59.95). A yearly subscription works out at $11.66 per month (billed as one payment of $139.95).

How Does it Check?

It checks sentence by sentence for all forms of grammar, plagiarism and offers tips and advice on how to improve writing.

Pros and Cons

Pros – offers guidance on style and helps improve writing as well as correct any form of plagiarism.

Cons – a little on the pricer side, would suit a young professional in the writing industry who wants to continue to improve their writing.


Quetext offers a streamlined design which allows users to easily enter their paper. It also has PDF and Microsoft Word upload options for convenience.

Who Can Use it?

Anyone who wants to make sure that their essay is correct before submission. It’s perfect for university students because it includes citation options but also work for young professionals looking to impress their bosses with an excellently referenced business document.

How Much Does it Cost?

After making Quetext review, we found out that it is free to use.

How Does it Check?

Quetext checks assignment by underlining all instances of plagiarism. A user clicks on these, and a side tab opens that shows a percentage of plagiarism and the source. There’s an option to cite the source which brings up a window to enter the author and publication date (Quetext includes the name of the publisher and publisher title)

Pros and Cons

Pros – Quetext found all sources of plagiarism using our test run content and offers a citation option, which other platforms don’t.

Cons – a user must sign up if they want more than 500 words checked.


EduBirdie is easy to use and offers a simple interface

Who Can Use it?

The main focus for EduBirdie is students. It's a service that is primarily targeting university students who want to ensure everything in their assignment has been referenced properly. It's easy to use design that is ideal for students.

How Much Does it Cost?

It’s completely free.

How Does it Check?

There’s a tab to enter text and then the system checks for plagiarism. It breaks down the uniqueness of the piece of work and then provides a link to all sources that are included but not referenced and shows the percentage of likeness to the source. This is extremely easy, and all sources can be viewed at a glance, which makes going back over the paper and referencing it super easy.

Pros and Cons

Pros – Makes reviewing and referencing easy and is a good basic professional website to check for plagiarism for free.

Cons – Does not provide as much detail or citing options as other checkers.


Bibme’s interface is easy to navigate. The text is entered into a window, and a new page opens outlining any plagiarism, the percentage of plagiarism and grammar mistakes. There is also a citation generator option to identify any citations in the text for accuracy.

Who Can Use it?

Bibme can be used by anyone who needs their documents, papers, and essays reviewed. It serves as an all in one grammar and plagiarism checker so is perfect for creators, students, professionals and anyone else who needs to check documents.

How Much Does it Cost?

Bibme isn’t a website that checks for plagiarism for free. When a user enters an essay, a window pops up that offers a 3-day free trial. A user will then be charged $9.95 per month.

How Does it Check?

It reviews paper for grammar, citations, and plagiarism and allows a user to fix all issues and download in one easy format.

Pros and Cons

Pros – Reliable, legit service and citation generator.

Cons – The website doesn’t mention pricing from the offset so can trick people.

Search Engine Reports

Very similar interface to Small SEO Tools

User Groups

It’s marketed for all users from professionals to students and can be used by just about anyone who wants a safe and reliable referencing source. Most popular amongst students but ideal for SEO specialists, too.

How Much Does it Cost?

It’s free for anyone to use

How Does it Check?

It divides assignment by sentence and compares each sentence to an online source and notes whether the sentence is plagiarised or unique. It is extremely detailed and provided more detail than Small SEO Tools in terms of uniqueness of content.

Pros and Cons

Pros – Detail orientated and offers an option to upload files from the cloud or a computer.

Cons – Site is very advertising heavy, which makes it difficult to navigate.


Extremely easy to use. Files can be uploaded, or the text can be pasted into a window.

User Groups

Anyone can use PrepostSEO but there’s a focus on business users who need documents, business papers and reports checked. The price packages would suit professionals more so than students and the document pricing ranges are more catered for bigger companies goals.

How Much Does it Cost?

There’s a free option, or a user can upgrade to premium. A basic packages quote which lasts for 12 months costs $50. This is for one user and has 5,000 word limit per paper. A standard packaged is $150 and capped at 10,000 words. A company-wide package for offices is $350 and capped at 25,000 per document.

How Does it Check?

It divides paper by results, matched sources, grammar and readability. By far the most detailed free program available. Results provide a sentence by sentence plagiarism breakdown. Matched results offer the source of the references used. Grammar results break down all grammar issues. Readability offers advice on the usage of words and sentence length.

Pros and Cons

Pros – an Excellent free tool to prevent and detect plagiarism with detailed and insightful free results.

Cons – Premium packages are expensive.


Plagramme offers a confusing user journey. It’s difficult to find where to input an essay to check, and the site is too information heavy.

Who Can Use it?

Anyone who needs paper checked can use Plagramme but the website targeting is based more at students (even though this is quite unclear on the site). High-school students and university students would benefit from this checker best.

How Much Does it Cost?

There is a free service and premium service to choose from. But the pricing information requires a user to sign up.

How Does it Check?

Once a user enters their details, they submit their assignment through the plagiarism free software option. This checks for plagiarism but is a very basic model. The premium model checks for spelling errors and citations but pricing isn’t clear anywhere on the site.

Pros and Cons

Pros – Multiple languages available.

Cons – the website is misleading.

Being informed on the best expert checkers, there are available is key to making good choices and improving skills as a writer. The plagiarism checkers that have been reviewed above are the most popular on the market at the moment. The guide above is based on professional and academic opinions.

Read also: Why Is Plagiarism Illegal?

Tips to Avoid Plagiarism

Sometimes when a student decides to write on his/her own, instead of buying assignments at, plagiarism can be missed and is a genuine mistake. Using a checker prevents these mistakes in assignments from being submitted as completed paper, which in turn can put a student at risk of losing marks for their essay, or worse being suspended from college. When writing essays, it's also important to keep a few simple guidelines in mind to minimize plagiarism. Students should make sure that every single tiny detail they have taken from a source is cited. It might seem silly to reference a sentence when it has been tweaked slightly, but it will be detected. Also, if a student will be citing large pieces of assignment from a particular copyrighted journal, gaining permission from the author is advised. This is generally only important if a student will be basing a whole study or research paper on a copyrighted piece of work but shouldn’t be disregarded.

For more helpful guides and tips on plagiarism and college writing services browse and keep an eye on our blog over the next few months for essential student advice on everything from college life to study tips.

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