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10 Best Free Plagiarism Detector Software

Best Free Plagiarism Detector

Plagiarism is a serious offense in academia and can have severe consequences. To avoid it, many individuals and institutions use plagiarism detection software. In this article, we have compiled a list of the 10 best free plagiarism detector software available in the market. Let’s get started.

1. Quetext


Quetext is a plagiarism detection software that checks for similarities in text and identifies potential cases of academic dishonesty. It offers a user-friendly interface, accurate results, and multiple features to help writers ensure the originality of their content.

Quetext Features and Benefits

  • User-friendly interface
  • Accurate results
  • Helps maintain credibility and avoid legal issues
  • Ensures originality of content
  • Comprehensive analysis of text content
  • Generates a report highlighting instances of plagiarism
  • Deep search technology
  • Contextual analysis
  • Citation assistant tool

2. Unicheck


Unicheck provides robust scanning capabilities, intelligent algorithms, and a user-friendly interface to help educational institutions, businesses, and content creators ensure the originality and integrity of their written work.

Features and Benefits

  • Perform real-time scans of their content, allowing them to promptly identify and address any plagiarism concerns
  • Provides a detailed breakdown of document similarity, highlighting specific sections or sentences that match other sources
  • Google add-on for on-the-go similarity checks
  • Multiple text formats supported, including .docx, .rtf, .txt, .odt, .html, .pdf, .ppt
  • Scans pages within 4 seconds

3. Plagiarism Checker X

Plagiarism Checker X

Plagiarism Checker X is a software tool that checks the originality of content and detects instances of plagiarism. It uses advanced algorithms to scan the internet, local databases, and online repositories to ensure the authenticity of the text.

Plagiarism Checker X Features and Benefits

  • Checks for plagiarism in multiple languages
  • Provides detailed reports showing the sources of plagiarism
  • Uses advanced algorithms to detect instances of plagiarism
  • Checks against a massive database of academic papers and web pages
  • Checks multiple documents at once
  • It can be used by individuals, educators, and businesses to ensure the originality of content
  • It has an easy-to-use interface and requires no technical knowledge
  • Compatible with Windows and Mac operating systems

4. Grammarly

Grammarly Plagiarism

Grammarly’s plagiarism detector is part of its premium subscription. It scans your text against a vast database of web pages and academic papers to identify potential instances of plagiarism and provide suggestions for originality improvement.

Grammarly Features and Benefits

  • Scans your text against a large database of web pages and academic papers to identify potential instances of plagiarism.
  • Provides detailed originality reports that highlight specific text passages that may have been copied or need citation
  • Compares your text not only against web pages but also academic databases
  • Offers suggestions for proper citations and references to help you give credit to the original sources
  • Works in real-time, allowing you to receive immediate feedback
  • The plagiarism detection feature is seamlessly integrated into the Grammarly interface

5. Paraphraser


Paraphraser.io is an online paraphrasing tool that uses advanced algorithms to generate alternative versions of text, helping users to avoid plagiarism and create unique content. With its user-friendly interface and efficient processing, Paraphraser.io offers a convenient solution for rewriting sentences, paragraphs, or entire documents.

Paraphraser Features and Benefits

  • Utilizes state-of-the-art algorithms to generate high-quality paraphrased content
  • Supports multiple languages, allowing users to paraphrase text in various languages
  • Choose to paraphrase individual sentences or entire paragraphs
  • Beneficial for students, researchers, content writers
  • Offers both free and premium versions

6. Copyleaks


Copyleaks is a plagiarism detection and content authentication platform. It employs advanced algorithms and AI to scan and compare text across various sources, helping users identify instances of plagiarism and ensure content originality.

Copyleaks Features and Benefits

  • Receives detailed reports highlighting instances of plagiarism
  • Beneficial for educational institutions, businesses, content creators, and researchers
  • Supports a wide range of file formats, including Word documents, PDFs, and plain text files.
  • Simple for users to upload and scan their documents efficiently
  • Offers API integration, enabling seamless integration with various platforms and systems

7. CopyScape


Copyscape is an online plagiarism detection tool that helps identify duplicate content on the internet. It allows users to check if their written material has been copied or used without permission by comparing it to existing content across the web.

Copyscape Features and Benefits

  • Specializes in identifying instances of plagiarism by comparing your content to a vast database of web pages.
  • Enables you to check multiple documents for plagiarism simultaneously, saving you time and effort.
  • Provides an API that allows developers to integrate Copyscape’s plagiarism detection capabilities into their own applications or websites.
  • Offers a simple and intuitive interface, making it easy to navigate and conduct plagiarism checks with ease.
  • Offers various pricing plans, including free and premium options, allowing you to choose the one that best suits your needs and budget.
  • Widely used by students, writers, editors, website owners, and content creators.

8. DupliChecker


Duplichecker is a versatile online platform that offers a range of tools to detect and prevent plagiarism. With its user-friendly interface and powerful scanning capabilities, it provides a reliable solution for content creators, educators, and businesses to ensure originality and maintain high standards of integrity.

Duplichecker Features and Benefits

  • Includes an image plagiarism checker
  • Upload multiple files simultaneously for efficient batch checking
  • Prioritizes user privacy and data security
  • Results are shown in percentages
  • Supports multiple languages

9. BibMe


BibMe is an online citation and bibliography generator that simplifies the process of creating accurate citations in various citation styles. With its intuitive interface and extensive database, BibMe assists researchers, students, and writers in citing their sources correctly, saving time and ensuring academic integrity.

BibMe Features and Benefits

  • Generates citations in multiple citation styles, including APA, MLA, Chicago, and more, ensuring accuracy and adherence to formatting guidelines
  • Offers an auto-fill feature that populates citation details by simply entering the title, ISBN, or URL of the source
  • BibMe has a vast database of sources, including books, journals, websites, and more
  • Users can easily edit and format their citations within the platform
  • Save citations and bibliographies
  • Streamlines the citation creation process

10. Plagium


Plagium is an online plagiarism detection tool designed to help users identify instances of copied content within their documents or texts.

Features and Benefits

  • Quickly scans your documents and provides plagiarism reports
  • Respects user privacy
  • Free and premium plans
  • Clear insights into the detected instances and facilitating necessary revisions
  • Identifies instances of copied content

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