Browse all apps

An interactive JavaScript console. Type JavaScript, see results instantly. Perfect for experimenting and learning.

by openexchangerates

A 2D gravity simulator. Click to spawn celestial bodies with custom size, density, and color, then watch them orbit and collide.

by Luhdo

Interactive particle physics simulation with sand, water, stone, and plants.

by Launch Arcade

An interactive particle sandbox. Drop sand, water, fire, and more and watch elements interact in a mesmerizing physics simulation.

by mohanad-80

An interactive 2D physics sandbox — click and hold to spawn objects, toggle gravity, and watch realistic collisions and bouncing in real time.

by MartinHeinz

A meditative falling-sand toy that doubles as a generative instrument. Pour coloured sand, water, fire, and seeds into a glass vessel and watch them fall, pile, and avalanche — and because every grain that settles plays a note, building your sand-art bottle quietly composes its own ambient music. Tilt to pour, swap palettes, vessels, and soundpacks, or just leave it be and let the scene drift.

by Archvile

A blocky 3D building game in your browser — place and break blocks to create anything you can imagine. Built with Three.js and React.

by satansdeer

Learn Kubernetes through interactive 3D gameplay. Deploy pods, handle real incidents, and master kubectl commands in campaign, chaos, and sandbox modes.

by rohitg00

Learn how Git really works — visually. Build real Git commands by tapping (no typing) and watch a live commit graph branch, merge, and rebase in real time. A guided 17-lesson curriculum takes you from your first commit to untangling diverged branches, plus Practice, Sandbox, and a Daily puzzle.

by Mercutio

An interactive 2D orbital mechanics sandbox. Spawn objects around a central star and watch gravitational orbits, velocity vectors, and collisions.

by zakerias91