Best Plagiarism Checker Software - Page 3

How Many Plagiarism Checker Software Products Does G2 Track?

Total Products under this Category: 63

Category Stats (Sep 2026)

  • Average Rating: 4.45/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: ProWritingAid (+0.22%) - Among all products in this category, ProWritingAid recorded the largest rating increase compared to last month

Last updated: September 30, 2026

How Does G2 Rank Plagiarism Checker Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 15,000+ Authentic Reviews
  • 63+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Plagiarism Checker Software

G2 Grid® for Plagiarism Checker Software plotting products by satisfaction and market presence

Highlighted products: Grammarly, GPTZero, Packback, AI Image Detector, Quillbot Paraphraser, CustomWritings, Feedback Studio, and Plagiarism Checker X.

Underlying data: [Grid® JSON](https://www.g2.com/categories/plagiarism-checker/grids.json?focus%5B%5D=grammarly&focus%5B%5D=gptzero&focus%5B%5D=packback&focus%5B%5D=ai-image-detector&focus%5B%5D=quillbot-paraphraser&focus%5B%5D=customwritings&focus%5B%5D=feedback-studio&focus%5B%5D=plagiarism-checker-x)

Proctorio

Proctorio is a comprehensive remote proctoring service offering identity verification and exam-proctoring services to more than 4,000 higher education, K-12, corporate, and federal institutions around the world. Proctorio has the lowest bandwidth requirements in the industry and prioritizes user privacy and security with end-to-end encryption. Its browser extension integrates seamlessly with most learning management systems (LMS) and third-party assessment platforms, while a suite of Lock Down, Recording, and Verification options allows exam administrators to customize exams for their needed level of exam security. Proctorio currently serves 4 million active weekly users and has proctored more than 80 million exams since 2013 while maintaining 99.991% uptime. Learn more about Proctorio at proctorio.com.

Average Rating: 4.1/5.0

Total Reviews: 31

How Do G2 Users Rate Proctorio?

  • Quality of Support: 8.6/10 (Category avg: 8.5/10)
  • Ease of Use: 8.9/10 (Category avg: 9.2/10)

Who Is the Company Behind Proctorio?

  • Seller: Proctorio
  • Year Founded: 2013
  • HQ Location: Scottsdale, Arizona
  • Twitter: @proctorio
    1,854 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    82 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Higher Education, Education Management
  • Company Size: 38% Medium, 35% Small

What Do G2 Reviewers Say About Proctorio?

AI-generated summary from verified user reviews

Pros
  • Users value the flexible proctoring that Proctorio offers, making testing more convenient and accessible at their institutions.
Cons
  • Users often face technical issues with the Chrome extension, leading to support requests and concerns about cheating.

What Are Recent G2 Reviews of Proctorio?

What Are G2 Users Discussing About Proctorio?

1Text Plagarism Checker

1Text Plagiarism Checker is a comprehensive online tool designed to ensure the originality of your written content. Utilizing advanced algorithms, it scans texts to detect any instances of duplication or unoriginal material sourced from the internet. Beyond plagiarism detection, the platform offers grammar and spelling checks, enhancing the overall quality of your writing. Its user-friendly interface allows for quick and efficient analysis, providing detailed reports that highlight specific sections of text that may require revision. Whether you're a student, educator, writer, or professional, 1Text Plagiarism Checker serves as a reliable resource to maintain the integrity and uniqueness of your documents. Key Features and Functionality: - Plagiarism Detection: Scans texts to identify duplicated or unoriginal content from online sources. - Grammar and Spelling Checker: Automatically detects and suggests corrections for grammatical errors and typos. - SEO Analysis: Analyzes text for SEO metrics, including word count, keyword density, and semantic relevance. - AI Tools: Offers AI-powered features like text generation and detection of AI-generated content. - User-Friendly Interface: Designed for ease of use, allowing users to navigate and utilize features effortlessly. - Flexible Pricing: Provides both free and paid options, catering to different user needs and budgets. Primary Value and User Solutions: 1Text Plagiarism Checker addresses the critical need for content originality and quality assurance. By offering a suite of tools that detect plagiarism, correct grammatical errors, and optimize content for search engines, it empowers users to produce high-quality, unique, and SEO-friendly texts. This is particularly beneficial for students aiming to submit original assignments, educators ensuring academic integrity, writers striving for error-free content, and professionals seeking to maintain credibility in their communications. The platform's comprehensive approach saves time and effort, providing peace of mind regarding the authenticity and quality of written materials.

Average Rating: 4.3/5.0

Total Reviews: 3

How Do G2 Users Rate 1Text Plagarism Checker?

  • Quality of Support: 7.8/10 (Category avg: 8.5/10)
  • Ease of Use: 9.4/10 (Category avg: 9.2/10)

Who Is the Company Behind 1Text Plagarism Checker?

Who Uses This Product?

  • Company Size: 100% Small, 33% Medium

What Do G2 Reviewers Say About 1Text Plagarism Checker?

AI-generated summary from verified user reviews

Pros
  • Users highlight the user-friendly interface of 1Text Plagiarism Checker, making it simple to navigate and utilize.
  • Users appreciate the grammar and spelling checking feature, enhancing the quality of academic reports effortlessly.
  • Users appreciate the spelling checking feature of 1Text Plagiarism Checker, enhancing the quality of their reports.
  • Users highlight the accuracy of 1Text Plagiarism Checker, as it effectively identifies and sources plagiarism in reports.
  • Users love the grammar and spelling checking feature of 1Text Plagiarism Checker for its accuracy and ease of use.
Cons
  • Users find the difficult usage of 1Text Plagiarism Checker to be a barrier to effective functionality.
  • Users find it limited access due to complexity and high pricing for features in 1Text Plagiarism Checker.
  • Users find the hidden AI text detector feature frustrating, suggesting it should be more accessible during checks.

What Are Recent G2 Reviews of 1Text Plagarism Checker?

Plagiarix

Plagiarix is an AI-driven plagiarism detection platform designed for academic institutions, proctoring providers, and LMS integrators. It offers robust tools to detect plagiarism across online sources, AI-generated content, and batch exam processing. Key features include AI content detection, internet plagiarism comparison, and large-scale document analysis with OCR capabilities. https://plagiarix.com/

Average Rating: 4.2/5.0

Total Reviews: 3

How Do G2 Users Rate Plagiarix?

  • Quality of Support: 10.0/10 (Category avg: 8.5/10)
  • Ease of Use: 8.3/10 (Category avg: 9.2/10)

Who Is the Company Behind Plagiarix?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Plagiarix?

AI-generated summary from verified user reviews

Pros
  • Users find Plagiarix's platform easy to use, enabling straightforward plagiarism checks with a simple and intuitive interface.
  • Users find the AI content detection feature of Plagiarix helpful, successfully identifying a significant percentage of AI-generated content.
  • Users appreciate the simple interface and quick content highlighting of Plagiarix, making plagiarism checks efficient and easy.
  • Users value the seamless cloud integrations of Plagiarix, enhancing their content management experience effortlessly.
Cons
  • Users report the inaccuracy of results with Plagiarix, experiencing false positives and incomplete checks from certain sites.
  • Users find the difficult usage of Plagiarix frustrating due to basic UI and limited content parsing capabilities.
  • Users find integration issues with Plagiarix challenging, limiting its effectiveness and overall user experience.
  • Users find the slow performance of Plagiarix challenging, especially in comparison to more efficient competitors.

What Are Recent G2 Reviews of Plagiarix?

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CheckForPlag

CheckForPlag is a Anti Plagiarism Detection Software which is Available in Multiple Regional languages such as Hindi, Urdu, Tamil and more.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate CheckForPlag?

  • Quality of Support: 8.3/10 (Category avg: 8.5/10)
  • Ease of Use: 9.2/10 (Category avg: 9.2/10)

Who Is the Company Behind CheckForPlag?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About CheckForPlag?

AI-generated summary from verified user reviews

Pros
  • Users find CheckForPlag's ease of use refreshing, allowing seamless navigation and quick learning for effective plagiarism checking.
  • Users commend the high accuracy of CheckForPlag, effectively detecting plagiarism in diverse content types.
  • Users appreciate the cross-platform compatibility of CheckForPlag, seamlessly integrating with various educational tools and services.
  • Users value the easy setup of CheckForPlag, appreciating its intuitive interface for efficient plagiarism checking.
  • Users find CheckForPlag easy to implement, appreciating its user-friendly design and quick learning curve.
Cons
  • Users find the difficult usage of CheckForPlag frustrating, citing outdated UI and poor design impacting their experience.
  • Users find CheckForPlag to have inaccuracy issues, occasionally producing false results similar to other tools.

What Are Recent G2 Reviews of CheckForPlag?

Detectordeplagio

Detector De Plagio se integra con la tecnología AI que tiene la capacidad de escanear no solo el contenido exacto, sino también encontrar similitudes en el significado y en la formación de oraciones. Puede ayudarlo a encontrar contenido parafraseado o reformulado.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate Detectordeplagio?

  • Quality of Support: 6.7/10 (Category avg: 8.5/10)
  • Ease of Use: 10.0/10 (Category avg: 9.2/10)

Who Is the Company Behind Detectordeplagio?

Who Uses This Product?

  • Company Size: 50% Small, 50% Medium

What Do G2 Reviewers Say About Detectordeplagio?

AI-generated summary from verified user reviews

Pros
  • Users value the speed and efficiency of Detectordeplagio in analyzing large text for plagiarism detection.
  • Users value the fast and easy text analysis of Detectordeplagio for daily plagiarism checking without data concerns.
  • Users appreciate the ease of use of Detectordeplagio, allowing quick and secure plagiarism checks effortlessly.
  • Users appreciate the quick analysis of large texts in Detectordeplagio, benefiting from its speed and ease of use.
  • Users value the time-saving speed of Detectordeplagio, finding it fast and easy for text analysis.

What Are Recent G2 Reviews of Detectordeplagio?

Plaghunter

Plaghunter is a reverse image search that scans where your images are being used online

Average Rating: 4.8/5.0

Total Reviews: 2

How Do G2 Users Rate Plaghunter?

  • Quality of Support: 10.0/10 (Category avg: 8.5/10)
  • Ease of Use: 9.2/10 (Category avg: 9.2/10)

Who Is the Company Behind Plaghunter?

Who Uses This Product?

  • Company Size: 50% Large, 50% Medium

What Do G2 Reviewers Say About Plaghunter?

AI-generated summary from verified user reviews

Pros
  • Users find Plaghunter's ease of use impressive, allowing effortless tracking of photo usage online without installation.
  • Users love the time-saving aspect of Plaghunter, as it requires no software downloads for quick photo tracking.

What Are Recent G2 Reviews of Plaghunter?

What Are G2 Users Discussing About Plaghunter?

Similarity

Turnitin Similarity helps safeguard your reputation by protecting against copy/paste plagiarism, student collusion, and research misconduct through a scalable workflow integrated within your institution’s LMS. Customers can further safeguard their institution’s academic integrity against emerging challenges such as AI writing detection and contract cheating by licensing Originality as an add-on on top of Similarity.

Average Rating: 4.3/5.0

Total Reviews: 2

How Do G2 Users Rate Similarity?

  • Quality of Support: 7.5/10 (Category avg: 8.5/10)
  • Ease of Use: 9.2/10 (Category avg: 9.2/10)

Who Is the Company Behind Similarity?

  • Seller: Turnitin
  • Year Founded: 1996
  • HQ Location: Oakland, CA
  • Twitter: @Turnitin
    24,497 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    990 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Small, 50% Large

What Do G2 Reviewers Say About Similarity?

AI-generated summary from verified user reviews

Pros
  • Users find Ease of Use in Turnitin Similarity, especially with seamless LMS integration and intuitive feedback tools.
  • Users appreciate the comprehensive database of Turnitin Similarity, enhancing the ability to identify potential plagiarism effectively.
  • Users appreciate the implementation ease of Turnitin Similarity, seamlessly integrating with their existing Learning Management Systems.
  • Users value the seamless LMS integrations of Turnitin Similarity, enhancing accessibility and efficiency for instructors and learners.
  • Users value the comprehensive database and features of Turnitin Similarity, enhancing both plagiarism detection and writing improvement.
Cons
  • Users find the similarity percentage misleading, often equating it with plagiarism, which can cause confusion.
  • Users struggle with the lack of clarity regarding similarity percentage, often misconstruing it as a direct indication of plagiarism.

What Are Recent G2 Reviews of Similarity?

Smodin

Smodin is your AI-powered writing assistant designed to help you write better, faster, and smarter. From essays and research papers to rewrites and citations, Smodin gives you the tools to get from idea to final draft without the stress. Founded in 2017, Smodin is built for students, educators, and content creators. We offer an all-in-one suite featuring AI writing, rewriting, plagiarism and AI detection, summarization, translation, and auto citation. The best part? It’s all in one place. No fluff, no distractions, just intuitive tools to help you get work done fast. Whether you’re racing a deadline or polishing a final draft, Smodin helps you write with confidence.

Average Rating: 4.9/5.0

Total Reviews: 10

How Do G2 Users Rate Smodin?

  • Quality of Support: 8.7/10 (Category avg: 8.5/10)
  • Ease of Use: 8.7/10 (Category avg: 9.2/10)

Who Is the Company Behind Smodin?

  • Seller: Smodin
  • Year Founded: 2017
  • HQ Location: Casper, US
  • Twitter: @Smodin_io
    14 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    11 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 79% Medium, 21% Small

What Do G2 Reviewers Say About Smodin?

AI-generated summary from verified user reviews

Pros
  • Users commend the accuracy of Smodin, achieving fluent and natural results that are indistinguishable from human writing.
  • Users appreciate the effective team collaboration features of Smodin, enhancing fluency and context improvement in texts.
Cons
  • Users note that Smodin's contextual understanding can falter, particularly with accuracy in Spanish texts.

What Are Recent G2 Reviews of Smodin?

Text Umschreiben

Text umschreiben ist ein Tool, das Änderungen im Text vornimmt, indem es Wörter, Phrasen, Sätze und manchmal den ganzen Absatz ändert, um den Text einzigartig und interessant zu machen.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate Text Umschreiben?

  • Quality of Support: 8.3/10 (Category avg: 8.5/10)
  • Ease of Use: 9.2/10 (Category avg: 9.2/10)

Who Is the Company Behind Text Umschreiben?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Text Umschreiben?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the user-friendly interface of Text Umschreiben, enabling quick and easy text rewriting in various languages.
  • Users find Text Umschreiben incredibly easy to use, allowing quick and seamless rewriting of content in various styles.
  • Users appreciate the easy setup of Text Umschreiben, allowing quick input and instant content rewriting.
  • Users appreciate the implementation ease of Text Umschreiben, enabling quick and user-friendly text rewriting across multiple languages.
  • Users value the easy integrations of Text Umschreiben, enabling seamless content rewriting in multiple languages effortlessly.
Cons
  • Users find the limited access to rewriting styles hampers customization and requires a stable internet connection.
  • Users find in the rewriting styles, which may not always meet their specific requirements.

What Are Recent G2 Reviews of Text Umschreiben?

DrillBit Plagiarism

DrillBit Plagiarism is a comprehensive cloud-based SaaS solution designed to support academic integrity and writing excellence. Our platform offers advanced plagiarism detection, AI-generated content identification, and document quality analysis, making it an all-in-one tool for educators, researchers, and students alike. By scanning billions of web pages, publications, and academic databases, DrillBit ensures accurate plagiarism reports and helps identify even the most subtle traces of copied or AI-generated content. Trusted by over 2,500+ academic institutions across 20+ countries, serving 400,000+ global users, DrillBit Plagiarism empowers educational organizations to uphold originality, promote ethical research, and maintain high standards of academic writing. With a user-friendly interface, robust analytics, and seamless integration, DrillBit is the preferred choice for institutions that prioritize reliability, efficiency, and security in content evaluation.

Average Rating: 3.0/5.0

Total Reviews: 1

Who Is the Company Behind DrillBit Plagiarism?

Who Uses This Product?

  • Company Size: 200% Medium

Enago Reports

Enago Reports is a comprehensive suite of reports, powered by advanced AI. These reports play a crucial role in assessing and enhancing the quality, integrity, and impact of multiple categories of documents in a fast, accurate, and detailed manner. Leveraging the extensive expertise accrued by Enago over 17 years, it efficiently enhances any document to ensure it achieves its maximum potential impact.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Enago Reports?

  • Quality of Support: 6.7/10 (Category avg: 8.5/10)
  • Ease of Use: 10.0/10 (Category avg: 9.2/10)

Who Is the Company Behind Enago Reports?

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Enago Reports?

Handywriter

Unleash the power of AI on your WordPress site with Handywriter. Perfect your writing with our tool that enhances every word for clarity and impact. Trusted by professionals for delivering polished, compelling content effortlessly.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Handywriter?

  • Quality of Support: 6.7/10 (Category avg: 8.5/10)
  • Ease of Use: 8.3/10 (Category avg: 9.2/10)

Who Is the Company Behind Handywriter?

Who Uses This Product?

  • Company Size: 50% Small, 50% Large

What Are Recent G2 Reviews of Handywriter?

Integrito

Integrito checks texts for originality by an innovative approach analyzing how the text was written. To address Academic Integrity challenges, it combines multiple features that cover all possible forms of cheating, providing unbiased and easy-to-use reports. It can help to: - Prove or disprove text authenticity by exploring the writing process and identifying suspicious events in Activity reports - Check plagiarism swiftly and accurately with our sophisticated algorithms and constantly updated databases. - Trace potentially machine-written content with our precise AI detector. - Check Discussions from Canvas or Brightspace. - Analyze any assignment right in your LMS. - Stay mistakes and typo-free with the Writing Assistant. Integrito Activity reports allow to track writing and contribution progress to see: - how the text was written - how much time was spent on writing it - if suspicious events like pasted text happened and compare them to the final version - if there were any other contributors to make sure contract-cheating didn't take place. Integrito’s activity report is an innovative tool that will help educators ensure academic integrity and help learners counteract false AIgirism claims in their writing.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Integrito?

  • Quality of Support: 10.0/10 (Category avg: 8.5/10)
  • Ease of Use: 10.0/10 (Category avg: 9.2/10)

Who Is the Company Behind Integrito?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Integrito?

AI-generated summary from verified user reviews

Pros
  • Users value the accuracy features of Integrito, ensuring content authenticity and protecting against dishonest authors.
  • Users value the effective tools of Integrito for identifying genuine authorship and ensuring content integrity.
  • Users value the mistake catching features of Integrito, ensuring transparency and authenticity in content creation.

What Are Recent G2 Reviews of Integrito?

Originality

Originality Check is a similarity checking solution proven to safeguard institutional reputation and deter plagiarism. The world’s most comprehensive collection of internet, academic, and student paper content ensures reliable results when checking student work for text similarity.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Originality?

  • Quality of Support: 8.3/10 (Category avg: 8.5/10)
  • Ease of Use: 8.3/10 (Category avg: 9.2/10)

Who Is the Company Behind Originality?

  • Seller: Turnitin
  • Year Founded: 1996
  • HQ Location: Oakland, CA
  • Twitter: @Turnitin
    24,497 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    990 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Originality?

AI-generated summary from verified user reviews

Pros
  • Users value the accuracy in detecting AI-generated content, ensuring originality in crucial immigration documents for clients.
  • Users find the ease of use in Originality essential for ensuring genuine and original submissions in their immigration work.
  • Users value the error detection capabilities of Originality, ensuring authenticity in resumes and immigration applications.
  • Users value the mistake catching feature of Originality, ensuring all applications reflect true originality and integrity.

What Are Recent G2 Reviews of Originality?

Plagiarism Guard

Plagiarism Guard is the all-in-one detection and rewriting tool designed for modern writers, educators, marketers, and students. Seamlessly integrated into Google Docs™ and Google Slides™, it helps you: ✅ Detect plagiarized content from web, academic, and published sources ✅ Identify AI-generated text with high precision ✅ Instantly rewrite to sound more human and bypass AI detectors Whether you're writing original research, crafting SEO content, or submitting assignments, Plagiarism Guard gives you clarity, confidence, and control – right where you work. Key Features: - Real-time scanning for plagiarism, AI-generated text in Google Docs™ and Google Slides™ without leaving your document - Humanization tools to rewrite flagged text and maintain tone - Reports on plagiarism and AI-generated text probability Clean UI, intuitive experience, and generous free tier Used by over 100,000 users from all over the world and trusted in classrooms, agencies, and enterprise teams worldwide, Plagiarism Guard protects your work and reputation in one click. Start free today – no switching tabs, no extra tools. Just smarter writing, right inside Google Workspace. 👉 Learn more at plagiarismguard.ai

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Plagiarism Guard?

  • Ease of Use: 10.0/10 (Category avg: 9.2/10)

Who Is the Company Behind Plagiarism Guard?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Plagiarism Guard?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated October 3, 2024