Top 5 AI Plagiarism Checker Tools in 2024

AI Plagiarism Checker

AI plagiarism checkers and AI content detectors analyse whether a piece of content is artificial intelligence (AI) generated using large language models. Simply put, an AI plagiarism checkers analyses the provided information by asking, “Is this content that I would have written?” If the response is affirmative, it is considered that AI created the content. Additionally, AI plagiarism checkers employ several techniques to identify whether AI generates the material. 

This article will examine the finest AI plagiarism checkers and how they operate.

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Best 5 AI Plagiarism Checker


AI Plagiarism Checker is amongst the best AI plagiarism checkers with multiple awards. Business Insider, ABC, CBS, NBC, Yahoo Finance, Fox, Lifewire, and Nature have all highlighted the tool. With over 5,000,000 users as of February 2024, Undetectable AI is immensely popular and ranked as the top AI detector by Forbes.


  1. Free AI detection: You can use the tool for free to detect AI.
  2. Simple to use: Check for AI plagiarism quickly and easily without entering your contact information. 
  3. Accuracy is worthy of an award: According to independent tests, it was among the most accurate systems on the market in 2024, with accuracy ranging from 85 to 95%.


  1. Do not do a traditional plagiarism check.


AI-based plagiarism detection is entirely free. Only the concealment of AI content is charged for by undetectable AI. 

Our “AI humanization” options range from $9.99/mo for 10,000 words to $209/mo for 308,000 words if paid monthly. Annual packages come with a 50% discount. We provide tailored enterprise solutions for businesses that require a higher monthly word volume.

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2. Turnitin

AI plagiarism checkers

In the academic community, Turnitin is arguably the most well-known plagiarism detector. Educational institutions frequently use it to ensure the uniqueness of students’ work.

Turnitin’s sophisticated algorithms check submissions against a massive database of scholarly papers, journals, and websites to identify similarities and possible plagiarism.


  1. An excellent traditional plagiarism detector with AI detection.


  1. Users sometimes lament the inaccuracy of AI detection.


Public access to Turnitin’s pricing needs to be on the page. Third-party websites state that educational institutions receive $3 per student annually.

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3. iThenticate

AI plagiarism checkers

The same business that makes Turnitin also makes iThenticate. This expert plagiarism detection and prevention tool was created with researchers in mind. Unlike other plagiarism-checking software, iThenticate focuses on comparing academic papers to a vast database of 155 million content items and over 60 billion web pages, which includes prestigious journals, publications, and research articles.

Because of this, academics and scientists who want to guarantee the originality of their academic papers, reports, and grant proposals will find it very useful. Because of its reputation for accuracy, usability, and thorough reporting, iThenticate is highly regarded in the academic and professional worlds as an instrument for upholding the integrity of research projects.


  1. Excellent plagiarism detector.
  2. Excellent content detector powered by AI. 


  1. The high cost of the plans grips customers.


iThenticate requires a one-time payment of $100 for manuscripts of 25,000 words or fewer or $300 for a single manuscript of up to 75,000 words.

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4. Copyscape

AI plagiarism checkers

Copyscape is a favourite among website owners and online publishers. How it works is simple:

  1. Enter the URL of your content.
  2. Copyscape scans the web for any duplicates of the content.

Website and blog owners use the tool to avoid SEO penalties for duplicate content. It also allows them to quickly check for fraudulent use of their content (plagiarism).


  1. Excellent traditional plagiarism detector for websites and blogs.
  2. Provides a substantial version for free.


  1. Consumers lament how quickly searches become costly.


CopyScape’s primary functions are available for free. The premium features have a complicated price structure. GetApp claims that “Copyscape Premium” costs 3¢ for searches up to 200 words and an additional 1¢ for every 100 words. For up to 10 pages, “Copysentry Standard” costs $4.95 per month plus an additional $0.25 for each page. Moreover, “Copysentry Professional” costs $19.95 per month for the first ten pages and $1.00 for each extra page.

5. PlagScan


Produced by the same company that makes iThenticate and Turnitin, PlagScan is a thorough plagiarism detection programme.

PlagScan provides comprehensive reports that list possible sources and instances of plagiarism, which facilitates problem-solving. PlagScan takes pleasure in protecting data privacy and ensuring that your documents stay private.


  1. Powerful plagiarism identification.
  2. Word count bills it.


  1. Users need more integrations with third-party tools, such as MS Word.


Users are charged depending on the number of words examined for plagiarism. Plans range from $5.99 for 6,000 words to $49.99 for 100,000 words.


That concludes our discussion of the top AI plagiarism checkers for 2024. The need for AI content checkers has grown with the number of AI authoring tools available. As a result, we have put together this list of the best websites to check for AI content to assist you. This list of the top 5 AI plagiarism checkers should help you find what you’re looking for.

We hope you liked our article on the top 5 AI plagiarism checkers websites. Feel free to add your suggestions in the comment box below. For more such content, stay subscribed to Techniblogic.

Varushi Yadav author Techniblogic 2024

By Varushi Yadav

As a seasoned lawyer and tech writer, I bring a unique blend of legal expertise and technical knowledge to the table. With a passion for both fields, I excel at breaking down complex legal concepts and translating them into clear, concise language for a wide audience. As a tech writer, I have the ability to communicate complex technical information in a way that is easily understandable.

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