7 Best And Free AI Content Detector Tools To Ensure Trustworthy Online Content

Are you tired of reading AI-generated content without knowing it? Learn about these 7 best and free AI content detection tools to verify the authenticity of online content.

In today’s digital age, creating online content has never been easier or faster, thanks to the advent of Artificial Intelligence (AI). This technology has revolutionized how we generate articles, blog posts, and social media updates, enabling us to produce high-quality content quickly. However, while AI has made content creation more accessible, it poses a new challenge – how can we tell if a human or a machine writes the content we are reading?

AI-generated content has become commonplace in various industries, including marketing, customer service, and journalism. While this technology has made content production more efficient, there needs to be more transparency in this practice which can be worrisome. It can be challenging to distinguish whether the content we consume is authentic or generated by AI. This is because AI has become so advanced that it can mimic human writing styles, making it difficult to discern whether a human created a piece of content. As such, this issue raises concerns about the credibility and reliability of online content.

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Thankfully, several AI content detection tools are available to help us detect whether the content we’re reading is generated by an AI (like chatGPT). In this article, we will use a piece of text generated by chatGPT to test the free AI content detectors available on the web and try to find the best of them, including their pros and cons and accuracy. Keep reading.

How Artificial Intelligence Generates Content

Artificial Intelligence Generates Content

AI can generate content through natural language processing (NLP) algorithms that can analyze large amounts of text data to identify patterns and create new content. These algorithms can be trained on various sources of data, such as books, articles, and even social media posts to learn how humans write and communicate.

One of the most popular and influential AI models used for content generation is ChatGPT (GPT-4, GPT-3.5), developed by OpenAI. GPT-4 is trained on a massive corpus of text data and can generate a wide range of text content, from articles and blog posts to poetry and even computer code.

To generate content, GPT-4 and similar models use a process called “autoregression,” in which the algorithm predicts the next word or sequence of words based on the context of the previous words. This allows the model to generate new text that is coherent and grammatically correct.

While AI-generated content can save time and effort for content creators and marketers, it can also raise ethical concerns such as the transparency and authenticity of the content. Therefore, AI content detection tools have become increasingly important to ensure the integrity of online content.

7 Best Free AI Content Detection Tools

1. GPTZero


GPTZero is a sophisticated classification model that utilizes advanced natural language processing (NLP) techniques to determine whether a document has been written by a large language model. This powerful tool provides predictions at the sentence, paragraph, and document levels, enabling users to quickly and accurately classify text content.

To ensure maximum accuracy and effectiveness, GPTZero has been trained on a vast and diverse corpus of human-written and AI-generated text. The training data covers a wide range of topics and writing styles, with a particular emphasis on English prose. By training on such a diverse range of data, GPTZero has become an incredibly versatile and reliable tool that can accurately classify a wide range of text content.

Accuracy: ⭐⭐⭐⭐⭐


  • Advanced classification capabilities
  • User-friendly and easy to use.
  • Highlight sentences that are more likely to be written by AI.
  • Intuitive interface and stats.


  • Only the first 5000 characters are shown in the free version of GPTZero.
  • Need an account to access more features.

2. Chat GPT detector by ZeroGPT

An advanced AI content detector designed if the content is generated by OpenAI (chatGPT).

The tool provides detailed feedback on each of these areas, highlighting specific sentences or phrases that may need to be revised or improved.

Accuracy: ⭐⭐⭐⭐⭐


  • ZeroGPT’s algorithm with an accuracy rate of text detection higher than 98%.
  • Character & word counter.
  • Visualize text analysis results using percentages.
  • Privacy protection.
  • Works with multilingual users.


  • After I tested and analyzed several texts generated by chatGPT, I have not found any cons of this tool.

3. Corrector App AI Content Detector

Corrector App AI Content Detector

The AI Content Detector by Corrector is an online tool that analyzes text content for possible issues, such as plagiarism, grammar errors, and inappropriate language.

Accuracy: ⭐⭐⭐⭐


  • No fancy feature, keep only the essentials.
  • Fast and accurate.


  • Created using a GPT-3 algorithm, which means it may not detect content generated by other AI.

4. Writer AI Content Detector

Writer AI Content Detector

A tool developed by Writer.com that uses advanced artificial intelligence (AI) algorithms to analyze written content and detect any potential issues with plagiarism, grammar, style, and tone.

It is designed to be highly accurate and efficient, using machine learning algorithms to analyze vast amounts of data and identify patterns that can indicate potential issues with content. The tool can also be customized to suit the specific needs of different users, allowing for greater flexibility and control.

Accuracy: ⭐⭐⭐


  • Free to everyone.
  • Supports both text and URL.
  • You don’t need to sign in or create an account to use the free version.
  • Team plan subscribers can check up to 500,000 words per month through the API.


  • Only available in the Writer app as an API.
  • There’s a 1,500 character (~300 words) limit to the amount of text you can check at a time.

5. Contentatscale AI Content Detector

Contentatscale AI Content Detector

This AI Content Detector goes beyond traditional language generators and classifiers to provide comprehensive coverage, utilizing three advanced AI components: Natural Language Processing (NLP), semantic analysis algorithms, and SERP parsing capabilities. This allows the tool to accurately forecast word strings and text created by ChatGPT and other AI generators.

It was built by Justin McGill, an entrepreneur with over 15 years of experience in SEO and content marketing, this AI detector is meticulously trained on billions of pages of data to accurately identify AI-generated text from sources like ChatGPT, GPT-4, and beyond.

Accuracy: ⭐⭐⭐⭐


  • Free and easy-to-use.
  • A detailed analysis highlighting which elements were written by a human versus generated by AI for transparency.
  • Available as a Chrome extension.


  • A little bit slow.

6. Copyleaks AI Content Detector

Copyleaks AI Content Detector

AI Content Detector uses AI algorithms to analyze and identify AI-generated content. It provides a fast way to detect text created by ChatGPT, GPT-4, GPT-3, Jasper, and other AI models.

Accuracy: ⭐⭐⭐⭐


  • Free to use and super fast.
  • Support for detecting AI content in English, Spanish, French, German, Italian, Russian, Polish and other languages.
  • Available as a Chrome extension.


  • You must upgrade to the enterprise solution for 99% accuracy and detailed analysis.

7. Scribbr Free AI Detector

Scribbr Free AI Detector

This is a fast and free AI detector developed by Scribbr that helps detect AI-generated content like ChatGPT3.5, GPT4 and Google Bard in seconds.

Accuracy: ⭐⭐⭐⭐


  • Clean UI and no sign-up required
  • Best for small text fragments


  • Max. 500 words per check
  • You must upgrade to the Premium version for maximum accuracy


In conclusion, the rise of AI content generation has brought about a new challenge in identifying genuine human-written content from that generated by machines. However, as we’ve seen, there are now several powerful AI content detection tools available to help us distinguish between the two.

From the ZeroGPT to Copyleaks AI Content Detector, each tool has its strengths and limitations, and it’s important to choose the right one for your needs. Whether you’re a content creator, marketer, or reader, these AI content detectors can help you ensure the authenticity and credibility of online content.

As the field of AI continues to advance, we can expect to see further developments in AI content generation and detection. However, the importance of transparency and accountability in online content remains a key consideration, and the use of AI content detectors is likely to become more widespread in the years to come.



  • Removed AI Text Classifier since it has been deprecated by OpenAI.

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