Plagiarism checker tools are any type of software designed to detect copied or stolen content in academic and professional settings. 

These might be used to identify potential instances of plagiarism and ensure that the work being presented is authentic and properly attributed.

These tools rely on artificial intelligence and machine learning algorithms to compare a given piece of text against a vast database, including academic journals, articles, books, online sources, and more. 

As a result, students and professionals can efficiently analyze text and evaluate if its content is genuine or not. 

Plus, depending on the tool, the students can find plagiarism reports highlighting similarities or matches with existing content to send their teachers as proof. 

So, if you’re looking for the best online plagiarism checkers in 2024, this article is for you. 

A Quick Summary:

• With so much information available on the internet, it becomes hard to differentiate between original and duplicate content. 
• Plagiarism checkers provide the easiest way to detect duplicated or stolen content. 
• These tools use AI technology to scan and analyze text, identifying similarities with existing content across various databases and sources.
• The best online plagiarism checkers are easy to use and provide accurate plagiarism reports. These tools are Plagiarismchecker.ai, Aiarticlespinner.co’s Plagiarism Checker and Paraphrasingtool.ai’s Plagiarism Checker. 

03 Best Online Plagiarism Checkers in 2024

1. Plagiarismchecker.ai

Plagiarismchecker.ai is an AI plagiarism checker tool designed to allow you to check your documents for plagiarism almost instantly. Whether you need to check your assignments, a blog post for your website, or even LinkedIn or any social media posts, Plagiarismchecker.ai is here to help.

Key Features:

• AI-powered plagiarism checker: AI-powered algorithms ensure a high level of accuracy in plagiarism detection.
• Quick results: Users experience swift turnaround times, making it an efficient solution for those with tight deadlines.
• Remove plagiarism feature: Like Paraphrasingtool.ai, this checker allows users to eliminate plagiarism directly through the platform.
• Results in percentage: Clear and concise results are presented in a percentage format, aiding users in understanding the extent of originality.
• Vast databases: Access an extensive array of databases, including online documents, ebooks, online databases, offline documents, search engines and more.

Pricing: 

Plagiarismchecker.ai offers three subscription plans:

• Starter: $5/month for 10,000 words.
• Professional: $10/month for 100,000 words.
• Agency: $100/month for 1 million words (Coming Soon).

Pros:

• AI-driven technology for precise plagiarism detection.
• Fast results.
• Flexible pricing plans catering to various user needs.
• Comprehensive database coverage.

Cons:

• All of its features are restricted to higher-tier plans.

2. Plagiarism Checker by Aiarticlespinner.co

Plagiarism Checker by AI article spinner is a comprehensive duplication checker tool for individuals who deal with substantial amounts of content. It boasts the capability to check up to 25,000 words in a single scan. 

With an emphasis on accuracy and simplicity, incorporating AI plus real-time results to empower users, checking plagiarism is easier than ever before. 

Key Features:

• Checks 25k words at once: This tool efficiently handles up to 25,000 words in a single scan.
• Highly accurate results: It ensures reliable and trustworthy plagiarism detection.
• Simple to use: A straightforward interface makes the tool accessible to users of all proficiency levels.
• Precise results: You can expect detailed and accurate results, aiding in the identification of duplicate content.
• Sources enlisted: The tool provides a list of sources where potential plagiarism is detected. 

Pricing: 

• $5/Month for 10,000
• $59/year for 10,000/month

Pros:

• Capable of handling large volumes of content.
• High accuracy in plagiarism detection.
• User-friendly design.
• Detailed results with listed sources.

Cons:

• Limited words on pricing plans. For example, its monthly plan allows you to only check 10,000 words. 

3. Plagiarism Checker by Paraphrasingtool.ai

Paraphrasingtool.ai offers a handful of AI tools to ensure your content is original and unique. One of the most famous features of this tool is its plagiarism detection tool. Plagiarism Checker by Paraphrasingtool.ai is a multifaceted tool that goes beyond traditional plagiarism detection. It not only scans for plagiarized content but also detects artificial intelligence-generated material through its AI content detector feature. This unique dual focus sets it apart in the crowded field of plagiarism checkers.

Key Features:

• Checks both plagiarism and AI content: This tool goes beyond traditional plagiarism detection by scrutinizing artificial intelligence-generated content, ensuring a comprehensive scan.
• Checks 1k words in one scan: With efficiency in mind, this checker swiftly reviews 1,000 words in a single scan, making it ideal for users with varying content lengths.
• Colour Grade results: Results are presented in a visually intuitive manner, employing colour grades to distinguish between original and duplicate content effortlessly.
• Percentage of original and duplicate content: Users receive a detailed breakdown of their content, providing insights into the percentage of original and duplicate material.
• Easy to use: A user-friendly interface ensures a seamless experience for both beginners and seasoned users.
• Remove plagiarism feature: The tool not only identifies plagiarism but also offers a convenient feature to remove it, streamlining the content correction process.
• Provides a list of sources: Users can access a comprehensive list of sources, facilitating proper citation and reference practices.

Pricing 

This plagiarism checker is part of the All-In-One Bundle Tools package of Paraphrasingtool.ai: Priced at $192 annually or $16 per month, this package includes a suite of tools, making it a cost-effective choice for those seeking multiple functionalities.

Pros:

• Comprehensive plagiarism and AI content checking.
• User-friendly interface.
• Detailed results with colour-coded grading.
• Additional features like source listing and plagiarism removal.
• Cost-effective.

Cons:

• Limited free features; full functionality requires a subscription.
• Ads pop-ups

Wrapping Up! 

Overall, all of these three plagiarism checker tools provide highly accurate results. But keep in mind that these tools are valuable in identifying potential instances of plagiarism, they are most effective when used as part of a comprehensive approach to promoting originality and responsible content creation.