Dreamleap

Interactive math and science learning that challenges you

A living map of every genre of music ever catalogued

Super-fast colour scheme generator and design tool

Create beautiful layered sand art directly in your browser

Look through someone else's window from around the world

Free and open-source chess server for all skill levels

A social dev environment for front-end designers and developers

Musical time machine across decades and countries worldwide

Veritasium on why things spontaneously sync — from fireflies to power grids

A beautifully honest animation about loneliness and how to fight it

TED-Ed on Tabby's Star and what could possibly cause its bizarre dimming

3Blue1Brown breaks down neural networks visually and intuitively

VSauce explains one of the most mind-bending results in mathematics

VSauce investigates the strange law that governs language and cities

Richard Feynman explains why 'why' is a hard question using magnets

TED-Ed explains Hilbert's mind-bending infinite hotel thought experiment