Initializing, please wait a moment

Como explorar 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.

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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:

  • Solar System 3D Explorer - Solar System 3D Explorer - All eight planets orbit the sun live on screen - drag to orbit the view,
  • Tyrannosaurus rex 3D Viewer - View a Tyrannosaurus rex in 3D - rotate the model, size it against a person, and read its real
  • Spinosaurus 3D Viewer - View a Spinosaurus in 3D - rotate the sail-backed model, size it against a person, and read its
  • Ankylosaurus 3D Viewer - View Ankylosaurus in 3D - rotate the armored model, size it against a person, and read its real
  • Pteranodon 3D Viewer - View Pteranodon in 3D - rotate the crested pterosaur, size its wingspan against a person, and read
  • Giganotosaurus 3D Viewer - View Giganotosaurus in 3D - rotate the model, size it against a person, and read its real length,
  • Carnotaurus 3D Viewer - View Carnotaurus in 3D - rotate the horned predator, size it against a person, and read its real
  • Iguanodon 3D Viewer - View Iguanodon in 3D - rotate the model, click its hand thumb spike, size it against a person, and
  • Therizinosaurus 3D Viewer - View Therizinosaurus in 3D - rotate the giant herbivorous theropod with the longest claws of any
  • Deinonychus 3D Viewer - View Deinonychus in 3D - rotate the sickle-clawed raptor that Jurassic Park's on-screen
  • Baryonyx 3D Viewer - View a Baryonyx in 3D - rotate the crocodile-snouted model, size it against a person, and read its
  • Pachyrhinosaurus 3D Viewer - View a Pachyrhinosaurus in 3D - rotate its thick nasal boss, size it against a person, and read its

Related guides: