11 Best AI Content Detector Tools (Free & Paid)

Aloukik Rathore Avatar

Catering to budget-conscious individuals and small businesses, this article highlights the best AI content detector tools offering free checks.

The best AI content detector tools are: 

  1. Originality.ai
  2. Grammarly
  3. Copyscape
  4. Turnitin
  5. Plagiarism Checker by SmallSEOTools
  6. Quetext
  7. DupliChecker
  8. PlagiarismDetector.net
  9. PaperRater
  10. Prepostseo
  11. PlagScan

Keep reading to discover more websites and free resources for AI Detection.

The Rise of AI in Content Creation

Integrating Artificial Intelligence (AI) in content creation signifies a major shift in digital communication. Using advanced algorithms and machine learning, AI-driven tools can now produce articles, blogs, and creative writing.

This content is often indistinguishable from that authored by humans. This technological advancement has democratized content creation, enabling unprecedented efficiency and scalability.

However, the rise of AI in content creation also presents significant challenges, particularly in maintaining content integrity and authenticity. Detecting AI-generated content is crucial for several reasons. Firstly, it ensures the preservation of human creativity and originality, core values in artistic and journalistic fields.

Top 11 Best AI Content Detector Tools

You might ask why I know about so many tools. My clients actively ask for AI check screenshots in my content writing assignments. Clients trust different tools, and I have ranked these tools based on demand and personal experience. So, here are the best AI content detector tools to use:

1. Originality.ai

Originality.ai is a valuable tool for assessing content originality and authenticity, particularly in an era dominated by AI-generated content.


Key Features: It provides a user-friendly copy-paste functionality, making it accessible to a wide audience. Additionally, it offers batch search capabilities for premium users, allowing for efficient checks on multiple pieces of content simultaneously.

Pros: Originality.ai is known for its ease of use, making it accessible to individuals and businesses seeking to maintain the originality of their content. It has gained trust for its reliability in detecting potential issues related to content authenticity.

Cons: Users opting for the free version may find its features somewhat limited for extensive content analysis.

2. Grammarly

Known for its grammar checking, Grammarly also offers plagiarism detection, which can help identify AI-generated content.


Key Features: Real-time grammar correction, contextual spelling checker, plagiarism detection.

Pros: Highly accurate, user-friendly interface, multifunctional (grammar and plagiarism).

Cons: The free version has limited features; full plagiarism detection is part of the premium plan.

3. Copyscape

Copyscape is a popular tool for checking content originality and plagiarism.


Key Features: Simple copy-paste functionality and batch search for premium users.

Pros: Easy to use, widely trusted for plagiarism checking.

Cons: Limited features in the free version; more comprehensive searches require a premium account.

4. Turnitin

Turnitin is a leading academic tool for plagiarism detection, often used in educational institutions.


Key Features: Comprehensive database for cross-referencing, detailed similarity reports.

Pros: Highly reliable in academic settings, extensive database.

Cons: Mainly accessible through institutional subscriptions, not typically free for individual use.

5. Plagiarism Checker by SmallSEOTools

This is a straightforward, accessible tool for checking contentoriginality.


Key Features: Text and document uploads, URL checking.

Pros: Free and easy to use, no registration required.

Cons: Limited features compared to premium tools and ads on the website.

6. Quetext

Next on our list of the best AI content detector tools is Quetext. It offers basic plagiarism detection with a simple interface.


Key Features: DeepSearch™ technology, color grading for potential plagiarism.

Pros: User-friendly, decent accuracy for a free tool.

Cons: Limited queries in the free version; deeper analysis requires a paid plan.

7. DupliChecker

DupliChecker is a multifunctional tool offering plagiarism checking, among other features.

Duplichecker Plagiarism Checker

Key Features: Plagiarism checking, grammar checking, SEO tools.

Pros: Versatile toolset, straightforward plagiarism checking.

Cons: Limited number of free checks per day, basic interface.

8. PaperRater

PaperRater is geared towards students and educators who must check grammar and plagiarism.

Key Features: Grammar and spelling check, writing suggestions, plagiarism detection.

Pros: Tailored for academic use, instant results.

Cons: The free version has usage limitations, and the plagiarism checker is not as robust as some alternatives.

9. PlagiarismDetector.net

This tool offers basic plagiarism detection services.


Key Features: Simple text input or document upload, multiple language support.

Pros: Easy to use, supports multiple file formats.

Cons: Limited features in the free version, sometimes slow processing.

10. Prepostseo

Prepostseo provides a suite of SEO tools, including a plagiarism checker.

Key Features: Plagiarism checking, SEO analysis, keyword tools.

Pros: Broad range of tools, supports bulk checking.

Cons: The free version has limited queries and features, with more in paid plans.

11. PlagScan

PlagScan is primarily used in professional and academic settings to detect plagiarism.


Key Features: Detailed reporting, secure data handling, and document comparison.

Pros: Comprehensive analysis, trusted by institutions.

Cons: More suited for institutional use, limited access for free individual use.

Bonus: Free AI Checkers Online

Here are a few more AI detection tools that I use sometimes:

  1. AI Content Detector | AI Detector | ChatGPT Detector – Copyleaks
  2. AI Content Detector
  3. AI Content Detector | ChatGPT, GPT-4, Claude, Gemini | Sapling
  4. AI Detector that Checks ChatGPT, GPT-4, Bard, Claude & Gemini.
  5. AI Content Detector
  6. ZeroGPT
  7. GPTZero

How do you Choose the Right AI Content Detector?

Selecting the right AI content detector hinges on your specific needs. For individuals and small businesses, look for user-friendly tools that balance comprehensive detection with affordability.

Academic and professional environments might require more sophisticated platforms offering detailed reports and extensive databases. Consider the frequency of your content checks; occasional users can opt for free versions, while regular users might benefit from a subscription.

Always test the tool with sample content to assess its accuracy and suitability for your requirements.

The Future of AI Content Detection

The future of AI content detection is poised for significant advancements. Google’s approach to AI-generated content in search results emphasizes quality over production methods. Their ranking systems prioritize content that exhibits expertise, experience, authoritativeness, and trustworthiness (E-E-A-T), regardless of whether it’s AI-generated or human-written.

While using AI to manipulate search rankings is against Google’s policies, they recognize AI’s potential for creativity and expression in generating helpful content. Content creators are advised to focus on original, high-quality, people-first content.

Google’s systems, including SpamBrain, are designed to surface reliable information and filter out spam, ensuring AI content meets the same standards as human-generated content.

“Rewarding high-quality content, however it is produced” ─ Google

Summing Up

These are the best AI content detector tools. In the future, these AI writing tools will become more humane and sophisticated (if not already). So, it’s just a matter of time before people stop checking for AI-written content in documents.

If you have enough experience in reading or writing, you can easily distinguish between poorly generated AI content. Using AI to generate good articles requires effort.


Here are the popular questions answered:

What is the most accurate AI content detector?

The most accurate AI content detector often depends on specific needs and content types. Tools like Turnitin and Copyscape are highly regarded for their precision in academic and web content contexts. However, accuracy can depend on the algorithm’s sophistication and the database it references, making it essential to choose a tool that aligns with your specific requirements.

What is the AI tool to detect AI content?

GPTZero is a notable AI tool designed to detect AI-generated content, particularly created by models like OpenAI’s GPT series. It analyzes writing to identify patterns typical of AI, such as uniformity in text and lack of typical human error. Tools like this are becoming increasingly important as AI-generated content becomes more prevalent and sophisticated.

Is there a way to detect AI-generated content?

Yes, there are ways to detect AI-generated content. Tools like GPTZero, Turnitin, and others use various algorithms to analyze text for patterns and inconsistencies typical of AI-generated content. These tools look for uniformity in writing style, overly formal language, and other markers not usually found in human-written text.

Are AI detectors 100% accurate?

No, AI detectors are not 100% accurate. While they are becoming increasingly sophisticated, there is always a margin of error. AI writing styles can sometimes mimic human writing closely, making detecting it challenging. Additionally, the context and complexity of the content can affect these tools’ accuracy. They should be part of a broader strategy for ensuring content authenticity.

Is GPTZero the best AI detector?

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