How To Check For Plagiarism & AI For Free? Explore Best Online Plagiarism Checker

With the inception of OpenAI’s ChatGPT in 2022, many people switched from creating content themselves to generating it from the chatbot. Many people use it just to have fun conversations, but students, writers, and others working on developing content have started relying upon the chatbot. This surge in demand led to companies bringing in more content-generation chatbots. However, doing so has lost the content’s authenticity, reliability, and originality. That’s where online Plagiarism Checkers come in!

With these checkers, you can analyze content for human verification and AI content. Nonetheless, not all tools are reliable, especially the free ones. Thus, you need to find a trustworthy tool that can help you detect content without making errors.

Although searching for a mostly reliable and free tool can be daunting, today’s guide will tell you how to check your content for free, whether to detect plagiarism or AI. You will find the best online plagiarism checker in this blog, so read on.

Want to read more about the usage of similar tools and their significance? Visit Route Shopping and enlighten your mind!

5 Best & Free Online Plagiarism Checker To Detect AI and Plagiarized Content

After thoroughly researching the perfect tools for checking content authority, we list the top 5 best free plagiarism software or checkers. Nonetheless, remember that when you pay for a tool, the results differ greatly, as the paid versions are more robust and detect the content way better.

So, without further ado, let’s look at the first one.

#1. GPTZero

GPTZero

One of the best and most free plagiarism checker tools is ZeroGPT. When it comes to using a free tool, many people online recommend ZeroGPT, which has proven to be a reliable AI as well as a Plagiarized content detector. Its user-friendly interface and accurate results make it a tool for checking text authenticity.

AI Content Detection

ZeroGPT can effectively differentiate between human-written and AI-generated content by examining statistical data. Its cutting-edge algorithm detects plagiarism and evaluates factors like perplexity and burstiness to provide a comprehensive analysis.

algorithm detects plagiarism

My experience with GPTZero was overwhelmingly positive. It consistently identified AI-generated articles and Plagiarized content precisely, and instances of false positives were minimal. I particularly appreciated the tool’s transparency regarding its metrics, a feature often overlooked by other plagiarism checkers. And the best part? GPTZero is completely free to use.

However, remember that the free versions only let you scan 10,000 words monthly and offer the option to perform advanced scans five times. You will also be able to perform multilingual AI detection and write feedback.

#2. PlagiarismCheck.org

Plagiarism

The next online plagiarism checker on our list is PlagiarismCheck.org, which is known for its comprehensive features and for providing authentic content analysis.

It is robust in general plagiarism detection and can identify AI-generated text with 99% accuracy. So, as a writer, you can be confident that your work is your own without any intent or intentional plagiarism.

Plagiarism Checker

The platform goes a phase further by presenting a generous free trial. Register, and you’ll receive 50 free pages to test the tool’s capabilities. This allows you to explore features like password protection, substitution detection, and more. More importantly, when you paste the text to scan, you’ll also see how effectively it identifies potentially plagiarized sources and any AI-generated content.

Once your free pages are used, you can choose a plan that best suits your needs. For just $5.99, you can purchase an additional 20 pages. This affordable plan removes daily limitations and includes scans against the internet and your database.

Additionally, you’ll benefit from a grammar checker and highly accurate AI detection functionality.

With this plan, PlagiarismCheck.org becomes a valuable tool for students, writers, and professionals, ensuring the originality and quality of their work.

#3. ZeroGPT

ZeroGPT

The third free online plagiarism checker on our list is ZeroGPT. While this tool is not as sophisticated as some other options, it remains a valuable tool for smoothly identifying AI-generated text and plagiarized content.

One of this tool’s unique capabilities is detecting even the latest GPT-4 language model by leveraging advanced algorithms to analyze input text and quickly provide results. In addition to pasting text directly, you can also upload files for scanning.

ZeroGPT also claims to provide 98% accuracy and offers a strong balance between input and output. When using this online plagiarism checker, I submitted a text sample and found that it accurately detected around half of the content.

However, it highlighted 2 of the lines as AI-generated when they were not. (See the screenshot below)

AI-generated content

Overall, it is a good free software to identify plagiarism and AI-generated content to obtain a commendable outcome.

#4. Merlin AI

Merlin AI

Merlin AI is our next best choice- a free online plagiarism checker. This robust tool offers a free forever plan with 102 daily queries and advanced features for those seeking a basic plagiarism and AI detection solution. However, paid plans are available for high-volume users.

Merlin AI employs a user-friendly interface that allows for pasting text and uploading files for analysis.

Merlin AI claims a high degree of accuracy in detecting AI-generated content. In my experience, Merlin AI effectively identified a significant portion of a test document created with GPT-4, demonstrating its strong capabilities. However, just like ZeroGPT, it highlighted a line as AI-generated when it was human-written.

AI-generated

Except for a little inaccuracy, it is a good tool for checking for plagiarism and AI on an average detected content basis.

#5. Dupli Checker

The last tool on our list is Duplichecker, which is known for its exceptional plagiarism detection capabilities. This is one of the prior tools, and most people are aware of it. However, if you still don’t know about it, Dupli Checker is a free online tool designed to identify instances of duplicate content. It scans the web for matching sentences, phrases, or paragraphs and highlights external sources containing similar material.

Plagiarism Checker

You won’t even need to register your elf when using Duplichecker. You can immediately access the check results once you enter the content and verify the captcha. Enter 1000 words per search (2000 words per search in case using an AI detection tool), which is generally sufficient for most content checks.

Beyond plagiarism detection, Dupli Checker offers a suite of valuable SEO and AI content tools. Its AI content tools include a free AI detector with a percentage score indicating the likelihood of the text being AI-generated rather than human-written.

When I used their AI detection tool and entered AI-generated content, 42% of the content was AI-written, and the rest was human-written, considering it had some human-written tone words.

AI content tools

However, the results differed slightly from those of the GPTZero plagiarism checker tool. GPTZero said most of the content (55% ) is AI-written, and humans write 44%. This means it showed that most of the content was AI-generated, which is a fact.

Duplicate checkers

Despite the comparison, Dupli checkers can estimate whether the content is original or AI-generated, making it a significant free tool for online plagiarism checkers.

📌Note:

All of the above-mentioned online plagiarism checkers are free to use and offer a free AI detection plagiarism feature, but they are not all considered 100% accurate. While they can identify some AI-generated content, these checkers sometimes misinterpret AI text as human-written, leading to false negatives and inaccurate results.

Summing Up

In conclusion, the rise of AI content generation has necessitated effective plagiarism checkers to ensure the authenticity and originality of written work. We have highlighted five of the best free online plagiarism checkers—PlagiarismCheck.org, GPTZero(again as a strong option), Merlin AI, ZeroGPT, and DupliChecker—each providing various features for detecting both AI-generated and plagiarized content.

Explore ChatGPT4 Drawbacks: Limitations and Concerns on Route Shopping!

While this website can detect plagiarism and offer valuable resources for writers, students, and professionals, it is important to recognize that free versions may have limitations in accuracy and depth compared to paid options. Selecting a trustworthy tool is crucial for proving content trueness, particularly in an era where AI-generated text is increasingly prevalent.

Frequently Asked Questions (FAQs)

What is the most accurate plagiarism checker for free?

Regarding a free online leaguers checker, GPTZero leads the market for its exceptional capabilities in detecting AI and plagiarized content. Other robust plagiarism detectors include Quetext plagiarism checker, Dupli Checker, seroGPT, and many more, available for free for AI and plagiarized contentment detection.

Can a plagiarism checker detect AI?

Traditional AI plagiarism checkers may not be able to detect AI-generated content because it is original and does not match existing content in a database.

However, AI plagiarism checkers and other tools can help identify AI-generated content.

Does ChatGPT plagiarize?

ChatGPT is not considered plagiarism because it doesn’t copy and paste information but can produce content that may be regarded as plagiarism or AI-generated. You need AI checker essay plagiarized detection tools rather than plagiarism checkers.

Is there a plagiarism checker better than Turnitin?

We are not certain about a better online Plagiarism checker than Turnitin. Still, tools such as Viper and Scribbr offer the same features and gas capabilities as Turnitin.

What plagiarism checker does Harvard use?

Harvard uses Turnitin, a text-matching software platform, to help detect plagiarism. Moreover, different Harvard schools, such as the Chan School of Public Health, offer Turnitin to their students to promote academic integrity and provide training on its use.

Turnitin compares students’ written work with other electronic texts, such as journal articles, books, and other students’ assignments. It can help students and faculty ensure academic integrity in their work.

How do I check a paper for plagiarism?

There are many ways you can check your paper for plagiarism, some of them include:

  1. Use a plagiarism checker: There are many sites to check plagiarism, including free options and paid options:
    1. Grammarly: A writing aid with a plagiarism-checking tool in its Premium version. Grammarly also checks for spelling and grammar.
    2. Copyscape: An online plagiarism detection software that helps users ensure originality.
    3. Quetext: Some say this checker provides a comprehensive report.
  2. Use a research journal and citation management tool: Keep track of your research and use a citation management tool to help paraphrase and quote sources correctly.
  3. Use Microsoft Word: Microsoft Word can help you check your text and citations as you write.

Apart from this Grammarly Plagiarism Checker and others, you can also avoid plagiarism by making sure you paraphrase or quote your sources correctly and that you cite all of your sources.

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