Critical Thinking Tools
Analyze arguments, detect fallacies, and improve your reasoning with our suite of AI-powered tools.
Free
Fallacy Finder
Paste any text and instantly identify logical fallacies. Get explanations and learn how to avoid them.
Up to 1,500 characters
Links to fallacy pages
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Free
Bias Checker
Analyze text for cognitive biases that may be influencing the reasoning. Understand how biases affect arguments.
Up to 1,500 characters
30+ cognitive biases
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Free
Fallacy Quiz
Test your knowledge with interactive quizzes. Identify fallacies in example arguments and track your progress.
Multiple difficulty levels
3 free quizzes per day
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Pro
Writing Lab
Write essays and arguments, then analyze them for fallacies and biases. Save your work and track your reasoning score.
Live analysis as you write
Save unlimited documents
Export to PDF/Word
Reasoning score
Upgrade to Pro — $8/mo
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