Initializing, please wait a moment

How to explore N-Body Sandbox 3D Explorer

Open the N-Body Sandbox 3D Explorer, click the ground to add bodies, then watch real gravity produce orbits, scatters, and captures.

  1. Open https://freetoolonline.com/space-3d/n-body-sandbox.html and wait for the starter four-body system.
  2. Read the facts panel: the real G value, bound count, and escaping count.
  3. Choose Light or Heavy for the next body, then click the ground to add it.
  4. Watch fading trails as bodies orbit, scatter, or get captured.
  5. Compare with Three-Body Problem 3D for a fixed choreography, or Gravity Well 3D for static potential wells.

Next: the when guide or vs alternatives. Open the N-Body Sandbox 3D Explorer.

Why trust these tools

  • Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
  • No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
  • Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
  • Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
  • Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.

Related tools:

Related guides:

Related news: