Turn what you knowinto lessons that stick.

Write lessons and courses, then make them stick with quizzes, flashcards and live games. Build it yourself, or ask ChatGPT or Claude to draft it for you.

Explore courses

Open source (AGPL)
Self-host with Docker
English + Arabic
Works with ChatGPT and Claude

Notes, a PDF or an ideaLessonQuizFlashcardsCoursePractice or a live game

Chaos is an open platform for teaching and learning. Write lessons and courses, make them interactive with quizzes, flashcards and live games, and connect ChatGPT or Claude to build them with you. Forms and surveys are included too.

Teach

Write it once, put it in order, and see what people still find hard.

Lessons

A page like a document: headings, images, video, equations, tables, sources and citations.

Write a lesson

Courses

Lessons in a clear order, free for anyone to take when public.

Browse courses

Quizzes and flashcards

Marked for you, with explanations and hints. Attach them to lessons and each learner sees their progress and weak areas.

Make a quiz

Play

Put any quiz on the big screen. People join on their phones with a PIN, answer, and see the leaderboard after each round.

Host a live game

Build it with ChatGPT or Claude

Connect your account once, then ask your assistant to do the work in Chaos. New content arrives as a draft for you to review. Chaos itself runs no AI.

Connect ChatGPT or Claude

Make a course from your notes

“Use my notes to create a course draft with three lessons, flashcards and a quiz for each lesson.”

Build a quiz that teaches

“Write 10 questions from this chapter with plausible wrong answers and short explanations.”

Prepare a live class

“Open a live game for my Chapter 3 quiz and give me the join PIN.”

Review what needs practice

“Read my weak areas and tell me which lesson and flashcards to review.”

Forms and surveys too

The same editor builds sign-ups, feedback and surveys, with sections, branching, file uploads and custom endings. Results come with live charts and exports.

Build a form

Work as a team

Business teams edit forms, lessons and courses together, and publish quizzes, courses, flashcards and live games only your team can open. Free for a limited time.

See Business teams