Do I need to install anything?

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

For First Responders · GPU N-Body

GPU N-Body for a trebuchet launch

Built for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field. Simulate a trebuchet launch 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.

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Frequently asked questions

Is this good for first responders?: Yes — this version of "GPU N-Body for a trebuchet launch" is framed for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.