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The Best Plagiarism Checker for SEO in 2023

The Best Plagiarism Checker for SEO in

Table of Contents

Table of Contents

What is plagiarism? And is it possible to use a plagiarism checker for SEO in 2023?

Plagiarism is a serious crime that involves illicitly copying and using someone else’s work as your own. Not only does this act violate copyright laws, but it also goes against the ethical principles that guide our behavior in society. When you plagiarize, then you are essentially stealing from someone who has put in countless hours of hard work to create something special – something distinctively original!

Plagiarism also hurts SEO

Google is extremely strict about plagiarism, and the consequences of copying can be disastrous for your reputation. That’s why it’s absolutely crucial to use a plagiarism checker before publishing anything online.

You need to make sure you are not only generating original content but also optimizing it in accordance with SEO guidelines.

We have scoured the web to bring you a list of the top plagiarism checkers for SEO. Find out which one works best for your needs below.

SE Ranking Content Marketing Platform

For writers and content marketers, SE Ranking Content Marketing Platform is an ideal tool; it not only verifies any text for plagiarism, but also improves its SEO-readiness, legibility, and quality.

Why use SE Ranking Content Marketing Platform?

The tool offers everything you need to create content – from researching topics and competitors, producing a brief, editing your work, keeping tabs on inserted keywords, and identifying any grammar errors. Plus, it allows you to collaborate with other people without having to leave the platform.


  • A comprehensive range of content generation services in one place
  • Competitor analysis for creating content
  • Utilize the power of AI to craft compelling content with ease
  • Evaluate the quality of the text with a few clicks


As the name implies, Grammarly will help you correct grammar with the added bonus of checking plagiarism. You only need to create an account using your email and a strong password.

Why use Grammarly?

With Grammarly, you can upload your work on their dedicated web service. Alternatively, you can use it with your web browser as a chrome extension. Talk about having a grammar and spell-checker everywhere you are.


  • Comes with monthly, quarterly, and annual payment plans.
  • Seamless user experience on the web browser or smartphone application.
  • Perfect for matching content against millions of websites
  • Enables you to customize and personalize your content so that it is unique and original.

Plagiarism Checker by Editpad

If you are looking for a quick and accurate plagiarism detection tool, then plagiarism checker by Editpad can be a good option.

Why use Editpad’s Plagiarism Checker?

The tool makes use of a diverse set of algorithms that efficiently compares the input text with millions of sources available on the internet to the smallest instances of duplicate content.

If any are found, it will highlight them along with the matched source. Additionally, this tool can check plagiarism in 14 different languages.


  • Ability to detect even the smallest traces of plagiarism
  • Free users can plagiarism up to 1,000 words at once
  • Comprehensive output results (percentage of both unique and plagiarized content)


An innovator in the fight against plagiarism, Copyscape is one of the most trusted and widely used tools for preventing content theft.

Why use Copyscape?

If you have a large amount of work to review for plagiarism, then this is the perfect tool. It can quickly and accurately detect any signs of copying or duplication in your content.

When it comes to pricing, the cost is based on your document’s word count. This makes it one of the most cost-effective anti-plagiarism checkers for SEO content out there.


  • Has a free yet limited option.
  • Their premium service inspects not just online content but offline material as well.
  • Batch searching is included in the package for your maximum convenience.
  • Perfect for content owners and webmasters.


This plagiarism checker tool is completely free! You can easily and quickly scan content with up to 1,000 words in length at a time.

Why use Duplichecker?

Creating a personal account is not necessary to get the most out of Duplichecker. All you need to do is upload or copy and paste your work onto the website in order for it to detect any plagiarism, as well as make corrections on copied parts before rerunning it through their system.


  • Geared towards new writers.
  • Thanks to the speedy results, this anti-plagiarism solution is a time-efficient one.
  • Despite its outdated design, its interface continues to be an efficient tool for detecting plagiarism.
  • A great tool for building and analyzing backlinks.
  • It serves you relevant keyword selections.
  • Free plagiarism checker.


When you’re on a tight budget, Plagramme is your best bet to check plagiarism. Access their website for free and check to make sure that the work you’ve created is 100% original.

Why use Plagramme?

Plagramme has no constraints when it comes to word limits, so you can easily check vast amounts of data. This plagiarism tool enables you to upload text that will be inspected against billions of sources worldwide.


  • Content improvement tools with their premium package.
  • Plagramme swiftly reviews content and offers you comprehensive insights.
  • For more efficient and time-saving bulk plagiarism searches, it’s simply the best.


Unicheck is a plagiarism detection tool that has helped millions of users review their work.  

Why use Unicheck?

Unicheck is the perfect solution for editors and bloggers who handle a lot of content. Its clever technology enables you to edit your copied text, ensuring that your article is free from plagiarism. Plus, Unicheck offers several payment plans tailored to suit any budget.

As an online plagiarism checker, it can help detect duplicated content with ease.


  • Unicheck is cloud-based, keeping your content in sync no matter wherever you are.
  • Speed and accuracy come together with this checker: it analyzes your work in a mere four seconds, delivering complete results.
  • With its bulk-checking abilities, you can now verify any length of words with ease.
  • Unicheck’s advanced algorithms let you effortlessly customize your content to make it totally unique and plagiarism-free on the web.


With WhiteSmoke, you can securely assess your articles and detect if they have been plagiarized or used without permission. The most unique content checker tool we have come across so far.

Why use WhiteSmoke?

You can use it to increase your productivity on Outlook, Word, or Chrome Extension through both your laptop and desktop. WhiteSmoke not only shows you the exact percentage of plagiarism in your work but also provides sources. Even more impressive is its ability to detect spelling and grammar mistakes- making it an all-inclusive platform. It can also work offline.


  • Connect with your entire audience without any language barriers—WhiteSmoke supports instant translation to 50 different languages.
  • Neatly integrates with both Microsoft Outlook and Word.
  • With unmatched accuracy, it can detect plagiarism from billions of sources.


Established in 2009, Plagscan is one of the leading sites that you can use to detect plagiarism. You need to create an account so that you can run your articles. 

Why use Plagscan?

As a welcome bonus, Plagscan gives you 20 free credits to use on 20 articles. You can upload your files or copy-paste them on the website to check for duplicate sources. Then, the site saves the documents to your account unless you wish to delete them. It features pretty accurate results whether you are trying to run a news article or a website URL through it.


  • Plagscan offers a range of subscription plans that are tailored to fit your budget.
  • Upload content from the cloud with support for Google Drive, Dropbox, or One Drive.
  • Comes with a free trial for new users.


Copyleaks is a cloud-based software that highlights texts that have plagiarism. The tool also identifies parts that you have paraphrased so that you can make them unique. It also doubles as a copyright checker tool.

Why use Copyleaks?

Copyleaks is the perfect solution for SEO agencies, publishers, lawyers, and other professional organizations that are looking to quickly scan their content without any delays.

This amazing tool helps protect your article copyrights while also notifying you if anyone copies them. Copyleaks ensures that your original material remains secure and protected. This free online plagiarism checker comes highly recommended.


  • Try out their free subscription to explore up to 2,500 words per month.
  • Thanks to Copyleaks’ lightning-fast system, you can upload an impressive 100 files for scanning in no time.
  • With AI technology, this tool quickly and efficiently identifies all plagiarized text with precision.
  • Copyleaks offers integrated translations for a select number of languages.
  • It comes with a fully featured mobile application.


As its name implies, this duplicate content checker tool is perfect for verifying plagiarism in your article. With the right tweaks, you can significantly enhance your article’s SEO ranking while steering clear of plagiarized content.

Why use Plagiarismhunt?

Plagiarismhunt’s free version not only reveals the uniqueness percentage of your text but also points out duplicate content that you can easily rewrite for improved quality.

Plagiarism hunt does not require an account for being used. However, if you want to gain access to in-depth reports and analysis, a one-time fee of only $45 is all that it takes!


  • Maximum compatibility with all browsers, including Windows, smartphones, and Mac.
  • Plagiarismhunt safeguards your work by automatically deleting it after 24 hours, ensuring that no one can steal your unique ideas.
  • Submit your work in doc, pdf, Docx, or txt file formats.
  • It comes with a free plan too.


With PaperRater, you can instantly and effortlessly access their anti-plagiarism software without having to create an account. Simply upload your work in order to determine whether it is original or not.

Why use PaperRater?

The tool will accurately identify any stolen segments and highlight them for you to modify. Not only that, but PaperRater also has the capability of correcting spelling mistakes, and grammar errors as well as judging your content’s standards.

It also recommends suitable word choices so that you can create superior articles with confidence.


  • Free to use as an add-on.
  • PaperRater is extraordinarily precise when it comes to detecting plagiarism, which explains why it takes more time to generate results.
  • You can conveniently upload your document either on your laptop or via Dropbox.


Try Quetext to ensure your content is completely original. With its free trial, users can experience the site’s powerful anti-plagiarism software and prove just how significant it is for creating authentic works.

Why use Quetext?

With Quetext, you don’t need to upload anything: the copy-and-paste method is all that’s required. It makes use of a text-box approach to deliver fast results in mere seconds.


  • With a month-to-month subscription, you can scan bulk texts in one go.
  • Quetext affords you the ability to swiftly generate results for documents up to 500 words, allowing you to save time and get on with your work.
  • The free trial gives access to all its features.


Dustball is one of the oldest plagiarism-checking tools that’s been around in the industry for over 15 years.

Why use Dustball?

Dustball is the ultimate tool for assessing your content’s quality – comparing it with billions of articles across the globe and delivering precise, comprehensive results right to you. Even better, you can easily upload your work straight from any laptop or desktop. So no matter where you are in the world, Dustball has got all of your content covered.


  • For only $8 a month, you can enjoy the benefits our subscription has to offer, and cancel whenever it no longer suits your needs.
  • With no limitations, 1,000 pieces of information can be scanned daily.
  • If your business demands a review of bulk articles, consider going with their premium plan.

Frequently Asked Questions

What is a plagiarism checker and how does it work?

A plagiarism checker is a tool that compares the text of a document to a vast database of web pages, academic papers, and other texts to determine if any portion of the text has been previously published. The tool identifies any instances of plagiarism and reports the results to the user.

Why are plagiarism checkers important for SEO?

Plagiarism checkers are important for SEO because search engines such as Google penalize websites that contain duplicate content. Plagiarism checkers help to ensure that the content on a website is original, which can help to improve the website’s search engine rankings.

How do plagiarism checkers determine if a text is plagiarized?

Plagiarism checkers use algorithms to compare the text of a document to a vast database of web pages, academic papers, and other texts. The algorithms look for similarities between the text being checked and the texts in the database. If a significant amount of text is found to be similar, the plagiarism checker will flag it as potential plagiarism.

Can plagiarism checkers be trusted to accurately identify plagiarism?

While plagiarism checkers are designed to be as accurate as possible, they are not perfect. Some plagiarism checkers have a high rate of false positives, meaning that they may flag text as plagiarized even though it is original. It is important to always check the results of a plagiarism checker and use critical thinking to determine if the text is actually plagiarized.

How can I use a plagiarism checker to improve the SEO of my website?

By using a plagiarism checker to ensure that the content on your website is original, you can improve your website’s search engine rankings. You can also use a plagiarism checker to identify any instances of plagiarism on your website and remove them to avoid penalties from search engines. Additionally, regularly checking the content on your website for plagiarism can help to ensure that it remains original and of high quality.


Consequently, these plagiarism checkers for SEO are ideal for determining any copied text that could cause Google to punish you. When your work is original and unique, it will draw more visitors to your business and consequently produce higher income due to the perception of professionalism associated with it.

With a variety of free and paid sites available, you can find the perfect fit for your needs. For example, Grammarly and Copyscape check spelling, grammar, plagiarism rate, and readability score so that readers enjoy your content. Some websites don’t even require registration to use their services – providing a great way to protect your personal information.

Joe Troyer

Joe Troyer is the Founder of Review Grower. He is leading expert in all things Internet Marketing: Pay Per Click Marketing, Search Engine Optimization, Google Business, Reputation Management, Landing Page Conversion, and Call Tracking.

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