Fallacy Spotter
Read a short argument and name the trick. Instant feedback.
Companion tools
Practice the craft
No account required. Adult tools and kid-friendly builders sit side by side.
Data note: Exercise answers and text you type are used to show your result on this page and are not saved in our database. We may count that a tool was opened for site statistics (not what you typed). The 30-day checklist saves only in your browser. See the privacy policy.
Valid vs Sound Checker
Tell valid from sound — and spot invalid forms.
Hidden Assumption Finder
Name the unstated premise that makes an argument work.
Ethos · Pathos · Logos Analyzer
Label appeals and spot honest vs manipulative rhetoric.
Socratic Question Generator
Paste a claim; get clarifying and steel-man questions.
Argument Mapper
Break a claim into conclusion, premises, and hidden assumptions.
Steel-Man Workshop
Rewrite an opposing view at its strongest before you respond.
30-Day Thinking Program
A structured month of daily drills — progress saves in your browser.
Claim + Reason Builder
Turn a wish into a real argument with because — for grades 3–5.
Sneaky Tricks Quiz
Spot sneaky argument tricks with kid-friendly names.
Weekly Challenge
A rotating fallacy / sneaky-trick focus for the week.
Quick Reference Cards
Printable desk cards: golden rule, fallacies, Super Thinker’s Promise.