AI Detector
Free and accurate AI Content Detector for ChatGPT, Gemini, Claude and more
What is AI Detector?
AI Detector is a free, web-based tool designed to identify whether a piece of text was written by a human or generated by artificial intelligence. It works across a wide range of AI models including ChatGPT, GPT-4, Google Gemini, Claude, and others, making it a practical utility for anyone who needs quick verification of content authenticity. The tool scans uploaded text and generates a confidence score indicating the likelihood of AI authorship, presented in a straightforward, no-frills interface that requires no technical expertise to operate. Beyond its core detection engine, the platform supports multiple languages and allows users to paste text or upload documents directly to the site for analysis. It provides detailed sentence-by-sentence highlighting that shows which parts of the text were flagged as AI-generated, helping users understand exactly what triggered the result. Because the tool runs entirely in the browser, it is cross-platform and works on any device with an internet connection, and users can start scanning immediately without creating an account or entering a credit card. This makes AI Detector especially valuable for niche audiences such as academic integrity officers, content marketing teams, recruitment professionals, and media editors. For these groups, it offers quick, low-friction checks that can be inserted into review workflows and editorial pipelines. Whether it is verifying the authenticity of an applicant's skills assessment, checking for undisclosed AI generation in a guest blog post, or screening social media comments for AI spam, AI Detector provides a fast, free, and accessible first line of defense against undetected AI content.
SpecificationsAI-estimated
Key Features of AI Detector
Use Cases for AI Detector
Academic Integrity Checks
Reviewing assignments and student submissions to ensure work is original and not entirely generated by AI.
Content Marketing and Blogging
Ensuring brand voice and originality in written content, including detecting AI-written bylines or submissions.
SEO and Content Agencies
Screening guest posts and SEO content to maintain high editorial standards and avoid Google penalties.
Recruitment
Verifying the authenticity of skills-assessment answers and other written assignments from potential hires.
Journalism and Publishing
Fact-checking and analyzing news articles, press releases, and press materials for undisclosed AI generation.
Social Media Moderation
Monitoring social media comments and interactions for AI-generated spam or automated bot activity.
How to use AI Detector?
Copy your text
Copy the text you want to check and navigate to the AI Detector website in your browser.
Paste or upload your text
Paste the copied text into the large text field on the homepage. Alternatively, you can upload a PDF or DOCX file directly to the site.
Start the check
Click the 'Check' or 'Detect' button to start the analysis. The tool may take a few seconds to scan the text.
Review the results
Review the results, which include an overall probability score of AI authorship and sentence-level highlighting showing which sections were flagged as AI-generated.
Use browser extension
If needed, use the Google Chrome extension to check text directly on any website, or adjust settings in the sidebar for more detailed analysis.
Pros & Cons of AI Detector
Pros
- Free forever for basic use
- Scans text in more than 100 languages
- No sign-up or account creation needed
- Convenient Chrome extension for checking any web page
- Provides helpful sentence-level highlighting of suspected AI text
Cons
- No batch processing for large volumes of text on the free tier
- May occasionally produce false positives on short or highly technical text
- Requires an internet connection since it is a web-based tool
- No dedicated desktop application for offline scanning
Frequently Asked Questions
What is AI Detector?
AI Detector is a free online tool that allows you to check if a text was written by artificial intelligence. It analyzes the text and shows how likely it is that it was generated by AI, including percentages and a detailed analysis.
Is it really free?
Yes, you can use the AI detector for free without any registration or download. You can search for text, upload a file, or use the Google Chrome extension on any website.
How does the AI detection work?
AI Detector uses a special multimodal model for the analysis, which simultaneously scans the input text and classifies it according to specific characteristics. This method makes it possible to correctly process text in more than 100 languages.
Can I upload a PDF to check?
Yes, you can upload a PDF document and analyze it for signs of being generated by AI. After uploading, the first page of your document will be analyzed by the tool.
Which AI models does it detect?
The tool detects text generated by a wide range of AI models including ChatGPT, GPT-4, GPT-3.5, Google Gemini, Claude, Grok, DeepSeek, Bing AI, You Chat, and other popular AI chatbots based on language models.
Does it store my text or information?
No, AI Detector does not store the text you analyze. The text is only used for the purpose of analysis and is not saved. Any modern browser that supports WebSocket (wss), such as Chrome, Firefox, and Safari, is required. Server-Sent Events are used for streaming.
What languages are supported?
The tool can analyze text in more than 100 languages, including English, German, French, Spanish, Portuguese, Russian, and many more, making it suitable for global users who work with multilingual content.
How can I use the AI detector?
You can copy and paste your text into the text field, upload a PDF document, or use the free Google Chrome browser extension for a quick and easy check on any website.
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