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Best Free Online Plagiarism Checker For SEO Tool

Plagiarism checker is a tool that is used to locate plagiarism instantly within a document or in your work. The advance in technology has made the use of the internet as a part of the day to day activities where most people research from the internet before they compose and publish their work. This has resulted to plagiarism as it is easy to copy other peoples work from the internet either intentionally or unintentionally. Therefore, it is essential to use a plagiarism checker to check the originality of your work before publishing it. Consequently, we have analyzed a list of free online plagiarism checker SEO tools and the benefits of using a plagiarism checker. Scroll down and learn more.

Plagiarism Checker

Best free online plagiarism checker SEO tools

The following are some of the best free plagiarism checker tools that can be used to detect the copied content.


Copyscape is one of the best free online plagiarism detector tool that is used by professionals to check the originality of their web contents. It uses the Google search engine to monitor the similarity of your content against the millions of website ranked by Google. It has various features such as private index, copy –paste original checks and batch- such all which aims at preventing theft of your content.

Key features of Copyscape:

  • Web Content Scanning: Copyscape scans the vast expanse of the internet to identify instances of content duplication.

  • URL and Text Input: Users can input either a website URL or specific text to check for plagiarism.

  • Comprehensive Results: The tool provides detailed results, pinpointing exact matches and displaying the percentage of similarity.

  • Plagiarism Prevention: Copyscape aids in preventing plagiarism by empowering users to take corrective actions to maintain content integrity.

  • Batch Search: Users can perform bulk searches, making it efficient for checking multiple pieces of content simultaneously.

In summary, Copyscape serves as a valuable resource for maintaining content originality, safeguarding intellectual property, and upholding ethical writing practices.

copyscape plagiarism


The pensters

The penster is also one of the best online plagiarism detector tools that you can use to check the originality of your content. However, this is not plagiarism checker software but an essay writing site which has a plagiarism checker tools where essay writers can run their work to ascertain originality.

Key features of The Pensters:

  • Custom Writing Services: The Pensters offers tailored writing solutions for essays, research papers, theses, and other academic assignments.

  • Diverse Pool of Writers: The platform boasts a diverse community of freelance writers with expertise in various disciplines.

  • Bidding System: One distinctive feature is the bidding system where writers bid on orders, allowing clients to choose the writer based on their preferences and pricing.

  • Plagiarism-Free Guarantee: The Pensters emphasizes originality, ensuring that the delivered content is free from plagiarism.

  • Revision and Refund Policies: The platform typically provides revision options and, in some cases, refunds to ensure customer satisfaction.

Free Online Plagiarism Checker


Plagiarism software

Plagiarism software is the best-rated plagiarism checker since it has a simple design which is easy to use and it checks the similarity instantly. It also generates the plagiarism report about your document which you can use to prove the originality of your work. Also, it is the most suitable plagiarism detector which you can use to avoid ruining your content reputation.

Key features of plagiarism software:

  • Text Comparison Algorithms: Advanced algorithms analyze the input text and compare it against a comprehensive database for similarities.

  • Database Access: Utilizes extensive databases containing academic papers, articles, and web content for thorough plagiarism checks.

  • Real-time Analysis: Provides quick and real-time results, enabling users to promptly address and rectify potential plagiarism.

  • Customization Options: Some plagiarism software allows users to adjust sensitivity settings and exclude specific sources for tailored analysis.

  • Report Generation: Generates detailed reports highlighting matched content, indicating the percentage of similarity, and facilitating easy identification of potential plagiarism.

best plagiarism software tool



Plagiarisma is an online plagiarism checker that allows the user to conduct tests through numerous online search engines. It checks the plagiarism against simple texts, URLs, and other documents files. It highlights the plagiarized texts by the use of yellow lines, and therefore you can change the highlighted texts.

Key Features of

  • Multilingual Support: supports multiple languages, making it accessible to users worldwide.

  • Multiple File Format Compatibility: The tool is capable of analyzing content in various file formats, such as text, DOC, DOCX, and PDF.

  • URL and Text Input: Users can check plagiarism by either entering a URL or pasting text directly into the platform.

  • Online and Desktop Versions: offers both online and desktop versions, providing flexibility in usage.

  • Free and Premium Versions: It typically provides free plagiarism checks with limitations and offers premium versions with additional features for more comprehensive checks.




Paperrater - Most people use this website because it is more than just an online plagiarism checker. Apart from checking the plagiarism in your document, it reviews and corrects the grammar through various grammar suggestions. Therefore, it is the best tool for those who want to produce grammatical free contents.

Key Features of PaperRater:

  • Grammar and Spelling Check: PaperRater conducts thorough checks for grammar and spelling errors, helping users refine their writing.

  • Plagiarism Detection: The tool scans content to identify potential instances of plagiarism by comparing it to a vast database of academic and online sources.

  • Writing Style Analysis: PaperRater provides insights into writing style, suggesting improvements for clarity, conciseness, and coherence.

  • Vocabulary and Word Choice Enhancement: It offers suggestions for expanding vocabulary and improving word choice to enhance overall writing quality.

  • Automated Scoring: PaperRater provides automated scoring for essays and other written assignments, offering feedback on various aspects of writing.

  • Feedback and Suggestions: Users receive detailed feedback and suggestions for improvement, aiding in the revision process.

plagiarism checker


Grammarly tool

It's a web-based tool, and you can also download it on Chrome as a tool bar for free. Grammarly checker helps you mistake free, write confidently everywhere, get your fix, improve your skills and do great things. Grammarly is one of our favorite tool when it comes to content checking and plagiarism it will deliver the best possible results.

Key Features of Grammarly:

  • Grammar and Spelling Check: Grammarly meticulously reviews text for grammatical errors and spelling mistakes, providing real-time corrections.

  • Sentence Structure Improvement: The tool suggests enhancements to sentence structure, ensuring clarity and coherence in written content.

  • Vocabulary Enhancement: Grammarly offers suggestions to diversify vocabulary, enriching the overall quality and impact of the writing.

  • Tone and Style Analysis: It provides insights into the tone and writing style, helping users maintain consistency and achieve their intended communication tone.

  • Plagiarism Detection: Grammarly flags potential instances of plagiarism by comparing the text against a vast database of academic and online content.

  • Browser Extension Integration: Grammarly seamlessly integrates with web browsers, offering writing assistance across various online platforms.

Additional Features:

  • Customizable Writing Goals: Users can set goals based on document type, tone, intent, and audience.

  • Personal Writing Statistics: Grammarly provides insights into users' writing habits, offering data on accuracy, vocabulary, and productivity.

  • Document Type Analysis: It tailors suggestions based on the specific type of document, such as academic, business, or creative writing.


Why plagiarism free content is important in SEO

Google made changes on how it ranks the web content in its search engine scouts with the aim of rewarding the contents which are unique and original by ranking them high. Also, the changes were aimed at detecting the copied and plagiarized contents to penalize them. Also, it is important to publish plagiarism free content as individuals who visit the online websites will appreciate and make their research based on the unique content only. Therefore, an exclusive content captures your viewer’s attention which increases traffic to your site.

There are numerous online plagiarism checkers each with various unique features. These plagiarism checkers have the advantages and disadvantages associated with them. Therefore, it is advisable to research the best plagiarism checker before you settle on one. However, you should only make use of the best plagiarism checker the best addresses your needs.

The above is the best free plagiarism checker that are available online and which you can make use of. However, if you need best results, it is recommendable to make use of paid plagiarism checker services as they with more and improved features.


In conclusion, writing assistance tools like Copyscape,, and Grammarly play pivotal roles in fostering originality, maintaining academic integrity, and refining written communication. Copyscape excels in detecting content duplication across the web, safeguarding against plagiarism. provides a multilingual, cross-platform solution with versatile file format compatibility for thorough plagiarism checks. Grammarly stands out as a comprehensive writing aid, offering real-time grammar and spelling checks, tone analysis, and vocabulary enhancement.


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