Duolingo for debate

Learn logic. Practice persuasion.

Train argumentation, detect fallacies, and get scored on how well you actually convince.

• Lessons

  Micro-lessons on argument structure, steelmanning, fallacies, rebuttals, framing, and classical persuasion.

• Practice Arena

  Pick a topic, side, and difficulty. Debate live against an adaptive AI opponent.

• Fallacy Library

  Eight core logical fallacies with examples and counters.

• Progress

  Local history of debates and scores. Privacy-first, no account required.