Learn anything,
one topic at a time.
Coursitout turns Wikipedia into bite-sized, interactive lessons and connects them on a giant map of human knowledge. Follow your curiosity — every answer opens a new path.
✨ New on the map
The latest lessons added to the map.
🧭 Learning paths
A few lessons to take in order, each one building on the last.
From the Greeks to democracy
How ideas born in Athens shaped the rights we have today.
Physics essentials
From atoms to black holes, with Newton and Einstein along the way.
Life, from cells to evolution
What living things are made of, and how they change over time.
How it works
Pick a topic
Wander the map of everything. Each topic links to what you should learn first and what it unlocks.
Play a short lesson
Short explanations, then a question right away: sort, match, estimate, fill in the blank. Instant feedback, no lectures.
Watch your map light up
Earn XP, master topics and see your own constellation of knowledge grow, one connection at a time.
Start with a lesson
Every lesson is free for everyone.
Music
Discover why music is hard to define, how sound is built into melody, harmony and rhythm, how pieces are made and passed on, and how technology keeps changing who can hear and make music.
Philosophy
What philosophy is, in a few minutes: the questions it asks, how it answers them, its main fields and what it is for.
Cell
Discover the cell, the basic unit of all life: how prokaryotic and eukaryotic cells differ, what organelles do, how cells make proteins and divide, and how cells first came to be.
Physics
What do rubbed amber, a falling stone and a black hole have in common? How physics hunts for the simplest root causes, tests its theories by experiment, and why Newton's physics was never thrown away.
Earth
Why is Earth the only known ocean world with life? Explore how its greenhouse atmosphere, restless interior, tilt, Moon and life itself work together to keep the planet habitable.
Isaac Newton
How one pull explains both a falling apple and the orbiting Moon, and the mathematics, experiments and method Newton used to show it. Also meet the private theologian and alchemist behind the public scientist.
Ancient Greece
Hundreds of tiny, fiercely independent city-states that almost never united, yet shared one culture: discover how that culture outlived Greek independence and won over Rome.
Democracy
Why did the Athenians think drawing lots was more democratic than holding elections? From the assembly of Athens to modern constitutions: what really makes a government democratic.
Electricity
Discover why electricity is really the behaviour of electric charge: how charges push each other through fields, how moving charge makes magnetism, and how that powers circuits, generators and motors.
Eleven worlds to explore
From atoms to empires — jump straight into a domain.