Free AI Checker & AI Detector
Detect AI-generated content from ChatGPT, GPT-5, Claude & Gemini with sentence-level highlighting.
4.8/5 — Trusted by 50,000+ students, teachers, and content creators
Trusted by students at
See AI Detection in Action
Experience how our AI checker identifies and highlights AI-generated content
The student invested a lot of effort into their software project, and it shows that they knew the principles of development.
The student's dedication to this project is evident, demonstrating a strong command of software development principles.
Many students use AI humanizers, but not all tools effectively transform AI-generated text or ensure it remains undetectable.
Simple and Credible AI Detection
Millions of users trust our AI checker to verify their content with confidence
Highlighted Sentences
Every sentence written by AI is highlighted, with a gauge showing the percentage of AI inside the text
Advanced Detection
State-of-the-art AI detection technology that can identify content from ChatGPT, GPT-4, Gemini, and other AI models
Multilingual Support
Detect AI-generated content across multiple languages with high accuracy and reliability
Multiple Features
Access our comprehensive suite of tools including plagiarism checking, paraphrasing, summarization, and grammar correction
Detailed Analytics
Get comprehensive reports with sentence-level analysis, confidence scores, and detailed AI probability metrics
Privacy Focused
Your content remains private and secure. We never store or share your text with third parties
More clarity,
less confusion
Paraphrasing and grammar checking tools are ethical uses of AI writing technology. They help millions of non-native English speakers and writers refine their text and express their ideas fluently.
But most AI checkers can't tell the difference between text that's been created with generative AI tools—such as ChatGPT, Gemini, Claude, and others—and text that's been refined using assistive tools. This leads to false positives and cultural bias.
So we built a better AI checker.
An AI checker that's
perfect for any project
Work projects
The last thing you want is to turn something in to your boss that wasn't created by you. Use our AI Checker to update your projects with your original work.
Blog posts
Make sure your content reaches its audience. Algorithms will penalize your text if it contains too much AI. Originality sets you apart, grows your following, and builds trust.
Research papers
Important papers you write for school or work should let your original writing shine. With our AI Checker, you can feel confident that the text you turn in meets your institution's requirements.
Featured guides
Pillar articles to help you choose, test, and use AI detection tools.
Frequently Asked Questions
Everything you need to know about our AI detection tool
Free AI Tools
Everything you need to verify, humanize, and improve AI-generated content
Still not sure AICheckr is right for you?
Ask ChatGPT, Claude, or Gemini what they think about AICheckr. Open one prompt and get an outside opinion instantly.