AI Content detectors help you analyze AI-generated data within seconds. Find out the best AI checkers and their key features.
AI has changed every field, from professional to personal aspects. AI tools like chatbots, text generators, video makers, etc, are used mainly by students, editors, and professionals. Like many other AI assistants, AI content generators can generate text, craft videos, translate languages, and do much more creatively. While AI checkers allow you to analyze AI-written content.
People, from students to writers, use AI writing tools like ChatGPT and Bard to ease their work. However, these writing tools generate plagiarized content that needs to be revised in academic and professional fields. AI content detectors can quickly determine the ratio of human-written and AI-generated content in any text. These tools are available in free and paid versions as well.
In this guide, explore the best AI checkers to help you effectively identify AI content. So, without further ado, let’s see this guide.
Top 10 AI Checkers for Plagiarism and AI Detection
Here is a list of the best AI checkers for plagiarism & content detection.
Best AI Checkers List

1. Turnitin
Every academic professional must be familiar with Turnitin. It is one of the best AI checkers trusted by over 14,000 institutions and several more teachers and students.
This is widely used in academia because it offers much more than AI detection. It lets you detect plagiarized content so teachers can easily detect dishonesty in student submissions. Turnitin is a free tool, but you can also purchase versions as needed.
Why Use Turnitin
- Detect GPT iterations
- Plagiarism Detector
- Studio delivers feedback to students
- Integration and Automation
Pros
- Widely trusted in the academic sphere
- Easy-to-use interface
- Improves research skills
- Detailed Plagiarism reports
Cons
- Premium is expensive for individual use
- Sometimes, it detects original content as AI-written

2. CopyLeaks
CopyLeaks claims to have a 99.2% accuracy and is the most reliable AI detector. Another reliable feature is that it detects content plagiarism in different languages, i.e., German, Spanish, French, and more.
Its monthly cost depends on the data you search, but initial pricing for 100 pages starts at $10.99/month. Copyleaks can detect articles, reviews, academic papers, and other types of content. Copy and paste data or upload your file to check AI content.
Why Use CopyLeaks
- Detect the content of all GPT models
- LMS and API integration
- Detects several languages
- Free Google Chrome extension
Pros
- Best for professional use
- Supports different languages and file formats
- Uses advanced machine learning
Cons
- It is more expensive than other tools
- It can be complex for beginners

3. ZeroGPT
ZeroGPT is a free and easy AI detector tool that renders the results in seconds with more than 80% accuracy. The best thing about this tool is that it detects all kinds of data, including GPT-4 LLM.
Moreover, this tool uses advanced technology, i.e., DeepAnalyse Technology, to check the data deeply. That’s why several professional and educational institutes use this tool. ZeroGPT allows you to detect free plagiarism of copy-paste content.
Why Use ZeroGPT
- Use advanced and accurate detection technology
- Real-time AI detection
- Apart from detection, it offers capabilities like summarization, paraphrasing, and translation
- ZeroGPT is available on platforms like WhatsApp and Telegram
Pros
- Supports content in multiple languages
- It’s free
- Cost-effective
- AI writing assistant
Cons
- The interface may seem outdated
- Accuracy issues

4. Winston AI
Winston AI is the best AI checker that promises 99% accurate detection of ChatGPT content. It divides the result into several sections, including the ratio of human writing, the ratio of AI text, and the readability score.
Winston has a very easy-to-use interface that detects data instantly. With the free version, you can only detect 2000 words, while the paid plan starts from $19 monthly.
Why Use Winston AI
- Read scanned documents
- A detailed detection
- Easy-to-use AI interface
- It claims a 99.98% accuracy rate
Pros
- It supports more than the English language
- Offers free text detection
- File uploading features
- High Accuracy
Cons
- Results can be improved more
- Relatively fewer supported languages than other tools

5. Crossplag
CrossPlag detector tool uses advanced machine learning language to determine AI-created or human-written accurately. Its interface is straightforward; copy and paste your text and click check. Results will appear immediately.
The free plan allows you to check a specific number of words, and the paid plan starts from $9 and more.
Why Use CrossPlag
- 98% detection accuracy
- AI and human written text detection
- Cross-Lingual Plagiarism Detection
- Quick
Pros
- Easy to use
- Trained with several parameters for ultimate accuracy
- Advanced Algorithms
Cons
- It doesn’t support any language except English
- Lack of graphical interface
- It doesn’t specify the result in detail

6. Originality.AI
Originality.AI uses advanced machine learning to analyze plagiarism and AI content in one go. It can accurately scan the text written by ChatGPT and Bard as well. Simply register your account, input the text, and click the “Detect” button to get a detailed detected output.
Another good option is to add a free Chrome extension too. Except for copy-pasted input, you can upload PDFs and any other text file to be scanned.
Why Use Originality.AI
- It offers 95% accuracy
- Quick and Efficient AI detection
- Multiple Text File Format Support
- User Data Privacy
Pros
- Shares a detailed report
- Offers multi-user access
- Supports many languages and file formats
Cons
- Premium accounts can be expensive

7. Sapling
Sapling is one of the best AI plagiarism checkers, and it uses advanced machine learning to specify a detailed output. With 97% accuracy, it also offers an easy interface and instant AI detection.
According to reviews, it could be more accurate than it promises, but it’s the perfect choice when someone is looking for a free AI tool. Simply paste or type your text, and it’s ready to scan. Sapling AI is perfectly designed for individuals, startups, and Enterprises.
Why Use Sapling
- Serves as a writing assistant, grammar checker, and proofreading tool
- Instant plagiarism detection
- Grammar and Spell Checking
- Autocomplete and Snippets
Pros
- Completely free tool
- Very easy to use
- Automated Grammar & Style Suggestions
Cons
- Offers just 60% accuracy

8. Scribbr
Scribbr’s free plagiarism checker is considered the most reliable, with an 88% detection rate. It provides an AI detector that can differentiate between human-written, AI-generated, and AI-refined content, offering paragraph-level feedback.
Scribbr’s AI Detector identifies texts generated by popular tools like ChatGPT, Jasper, Copy.AI, and more. One of the best things I like about Scribbr is that it supports over 20 languages and is widely regarded as one of the best in its category.
Why Use Scribbr
- Helps identify if a text was written with ChatGPT or other AI tools.
- Makes AI-generated texts sound more natural.
- Distills lengthy and complex texts down to their key points.
- Detects and resolves unintentional plagiarism
Pros
- Accurate Plagiarism Detection
- User-Friendly Interface
- Comprehensive Features
- Self-Plagiarism Checker
Cons
- Per-Document Pricing
- Limited Language Support

9. Grammarly
Grammarly is primarlly used for grammatical mistakes in text and sentence clarity, but it AI content detection and plagiarism checker tools are incredible. It identifies AI generated content within text, analyzes, and indicates the percentage that appears to be AI-generated.
I have been using it for a while, I like its content AI detection, but I have not found it a good plagiarism detector. It does not give very accurate results for plagiarism. Hence, it is still perfect for AI generated content detection.
Why Use Grammarly
- AI-generated content detection
- Grammar, Spelling, and Punctuation Checking
- AI-Powered Writing Assistant
- Tone and Style Adjustments
- Plagiarism Detection
Pros
- Real-time grammar and spelling correction
- User-friendly interface
- Plagiarism detection
- Customization
Cons
- Limited free version
- Limited Plagiarism results

10. QuillBot
When looking for the best AI checker, Quillbot also standout due to its detailed report on the composition of your text. It helps users to find the difference between human-written and AI-assisted segments.
It is best for detecting plagiarism from AI sources like ChatGPT, GPT-4. However, Quillbot supports various languages to detect text like English, French, Spanish, German, Dutch and more.
Why Use Quillbot
Identifies and corrects grammatical errors
Analyzes text for potential plagiarism
Detects AI-generated content in writing
Improves the flow and readability of AI-generated text
Pros
- Paraphrasing and Summarization
- Grammar and Plagiarism Checks
- Free and Paid Options
- Language Translator
Cons
- Free version has limitations
- Limited writing modes

Takeaway
Ai Detectors offer accuracy and efficiency as writing assistance if you write professionally. Several of the best AI checkers with free and paid versions exist, but not all can be accurate. Many AI tools show human-written content as AI, which can sometimes be concerning.
It’s better to thoroughly research the market and choose the suitable one according to your budget and needs. Turnitin and Copyleaks can be ideal for publishers, educators, and editors.