A galaxy of thousands of bodies, each pulling on every other. The full O(n²) gravitational interaction runs on your GPU — millions of force calculations per frame.
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.
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.
★ Sign in to save this setupSave your tuned setup, or drop this simulation into your own site, docs, or course page.
How it works
The compute shader uses workgroup-shared-memory tiling: each tile of body positions is cooperatively loaded into fast on-chip memory, then every thread accumulates gravitational acceleration from that tile before moving to the next. This is the standard GPU N-body pattern, and it lets a browser tab compute millions of pairwise forces per frame — well beyond what the CPU N-body studios can reach.
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Ask the AI about this model
The math, the assumptions, real-world uses, or a code translation — explained for this exact simulation.
Yes. GPU N-Body runs entirely in your browser using your device's own compute, so local use is free forever. You only pay Compute Tokens if you scale a job to the cloud.
Do I need to install anything?▾
No. Everything runs client-side in a modern browser — no downloads, no license, no account required to start.
Can I save or share my simulation?▾
Create a free account to save projects, and use a shareable embed or minted DOI to publish a live, interactive version anywhere.
How accurate are the results?▾
The solver uses established numerical methods, but results are for research and educational purposes and should be validated against experiment or professional review before you rely on them.