Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Hobbyists & Makers · GPU N-Body

GPU N-Body for planetary motion

Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate planetary motion live below — adjust the inputs and watch it respond, right in your browser.

GPU N-Body Studio (WebGPU)Live

O(n²) gravity · workgroup tiling

Controls

Every body attracts every other body — thousands of pairwise forces per frame, computed on your GPU.

Bodies

Gravity G

Data Inspector

Backendstarting…

Bodies4,096

Interactions/frame16,777,216

FPS—

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

Also for:Students Researchers Educators Engineers K-12 Students First Responders General version →

More with GPU N-Body

GPU N-Body for a projectile from a cannon GPU N-Body for a bouncing ball GPU N-Body for a pendulum clock GPU N-Body for a car braking GPU N-Body for a roller-coaster loop GPU N-Body for a satellite orbit GPU N-Body for a mass on a spring GPU N-Body for a skydiver's free fall

Frequently asked questions

Is this good for hobbyists & makers?: Yes — this version of "GPU N-Body for planetary motion" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.