AI plagiarism checker tools have become mandatory in educational institutions and professional settings for maintaining the originality and integrity of written work.

These tools are equipped with vast databases (online and offline documents) to compare the provided content and tell the user whether or not their content is unique. If the content is detected as plagiarized, they will also provide the source and link from where that text was copied. 

Plagiarism checking tools are beneficial for students, educators, content writers, bloggers, etc. in saving their time, preventing them from legal penalties and ensuring the originality of their work.

However, finding a reliable plagiarism checker is just as important as avoiding plagiarism itself. So, if you are a beginner or tired of testing unauthentic and inefficient tools, you should not skip this article. 

I am going to compare and elaborate on 04 of the best (widely trusted, well-reputed and advanced) plagiarism checker tools of 2024 in this article for quick analysis and deep understanding of individual tools. 

Comparison of the Features of 04 Best Plagiarism Checker Tools of 2024

The accuracy of the results provided by an AI tool depends upon the databases it is equipped with and the quality of its algorithms. Here is a brief description of the key features of 04 best plagiarism checker tools of 2024:

04 Best Plagiarism Checker Tools

1. Plagiarismchecker.ai

Plagiarismchecker.ai is a well-reputed and widely-used tool for detecting duplicated text. Its efficiency in comparing and identifying the provided content with billions of already-published documents is impressive. 

It provides the user with the percentage of unique and plagiarized text to ensure the integrity of their content. The following are the key features that distinguish it from the rest of the AI plagiarism detectors:

• Percentage of Unique & Plagiarized Text 

The tool analyzes the provided content and gives the results in the form of percentages (unique and plagiarized text).

In addition, it will also highlight both kinds of text (unique content as green and copied text as red) for the user’s ease in quick detection of the parts of the content that require to be changed.

• Locate the Source & Link for Citation Purposes

It is smart enough to effortlessly locate the source for every single copied sentence from the billions of documents in the blink of an eye (something impossible for a human being)!

• Prepares a Detailed Plagiarism Report 

If the user requires it, the tool allows them to prepare a detailed PDF report (downloadable, shareable, and printable) to be used as a reference or to prove the originality of their work or duplication in others’ writings.

• Safe and Secure for User’s Data 

The plagiarism checker is absolutely safe for user’s data and documents and does not store any data in repositories. 

• Affordable Pricing Packages 

For the convenience of users with diverse writing needs and professions, the tool provides the most affordable and flexible pricing packages, starting from $5 to $10 per month (for 10,000 to 100,000 words) and $50 to $100 per year (for 10,000 to 100,000 words).

• User-friendly features 

It is the easiest to operate compared to the remaining plagiarism checkers, equally simple for both beginners and regular users. It is capable of checking the content for plagiarism in 30+ languages, making it useful for both native and non-native English speakers.  

2. Plagiarism Checker by Grammarly 

AI plagiarism checker by Grammarly has both free and paid versions. It is trained to quickly cross-verify the provided writing against billions of web pages and let the user know about the originality of their content. 

Its free version only tells the user whether or not their content is unique and provides suggestions for other writing errors. If the user wants to know the exact percentage of plagiarism reports, they have to subscribe to premium packages. 

• Provide %age of Plagiarism 

It will differentiate the provided content as unique and duplicated by percentage. It is helpful for users in quick identification of how much of their text is copied from other sources. 

• Primary Source and Link for the Copied Content 

It will also provide the primary source and link from where the text was copied. If the content has copied text from multiple web pages, the tool will give the details of all sources and links used.

• Identification of Writing Errors 

Besides detecting the similarity index in a piece of writing, the tool will also highlight other writing errors such as grammar, spelling, punctuation, readability, etc., and provide alternate suggestions for the corrections. 

• Reliable for User’s Data and Documents 

Grammarly is trusted by millions of professionals and hundreds of organizations due to the appreciable security and safety that it offers to their documents and data.

• Affordable Pricing plans 

Grammarly offers the cheapest pricing for its plagiarism checking tool. It has individual (monthly for $30, quarterly for $20, and annual for $12) and team plans ($15/month/person). 

3. Plagiarism Checker by Aiarticlespinner.co 

Plagiarism Checker by Aiarticlespinner.co is another widely trusted platform for effortless yet authentic identification of the originality of someone’s work. 

The tool is designed to quickly cross-match the provided text against billions of web pages that it stores, find out if the text exactly matches with any of those documents or content, tell the user if there is a match, and provide a link to the primary source.

• Offer the Unique & Copied Text Percentage

It differentiates between the original or human-written text and the copied text from the already-published blogs, essays, thesis, journals, etc., and tells the user how much of their provided content is unique in the form of a percentage. 

• Multilingual Plagiarism Checker 

This remarkable plagiarism detector tool can check content in over 30 languages. It compares your writing against billions of online and offline documents in multiple languages, ensuring that no sentence is left unchecked.

• Provide Detailed Plagiarism Report 

If the user requires it,  the tool can prepare a detailed PDF file of the results including the source and link for each copied sentence, and the percentage of the unique and plagiarized text. It can be downloaded to be used offline. 

• Flexible Pricing Packages 

It has two (monthly and annual) pricing packages for its users that cost $5 and $59 respectively. In both packages, the user will be allowed to check up to 10,000 words per month. 

4. Plagiarism Checker By Semrush

Plagiarism Checker By Semrush is an advanced, free (for limited checks and word count), and authentic tool for accurate detection of the similarity index. It is much more than simply a plagiarism checking tool. 

For example, it will provide you with content insights including its readability score, reading time, writing errors, and AI-generated content.

• Similarity Sources 

The tool is capable of checking both website URLs as well as manually copy-pasted content for its originality. In response, it will provide the source and link (in case it has plagiarism) of the primary web pages from where the text was copied. 

• Affordable Pricing Package

It is free for 50 attempts (800 words per entry) and if the user finds the tool useful for them, they can purchase the only package offered by the plagiarism checker i.e. $49/month for 100 attempts (10,000 words per entry). 

• Accepts both URLs and Content for Checking Plagiarism 

It is proficient in detecting or checking URLs (articles, blogs, etc.) as well as documents in any format. It can also check multiple URLs in a single attempt without losing the accuracy of the results. 

• Additional Features 

Besides its matchless accuracy in checking for plagiarism, the tool can also provide the user with the readability score, reading time, grammar errors, and AI-generated content for the same piece of writing or content. 

Summary 

The above-detailed software are reviewed as the best plagiarism checker tools of 2024 due to their matchless accuracy, impressive features and authentic results. 

For professional writers, bloggers, educators, and researchers, I would recommend you select plagiarismchecker.ai because of its accuracy, reliability, and affordability. 

On the other hand, non-regular users and students who want a free yet authentic plagiarism checker can rely on the Semrush plagiarism checker tool. 

Long story short, whatever tool you choose from the above four, you are guaranteed the accuracy of the final results.