Planet Interior Cutaways 3D Explorer Step by Step
The Planet Interior Cutaways 3D Explorer starts as soon as the page loads: drag to orbit Earth's default cutaway, scroll or pinch to zoom, and click a planet button to switch worlds. Everything renders on your own device - no install, no account.
Step 1 - wait for the scene
Wait until the status line under the canvas invites you to click a planet button or a layer. Earth's cutaway loads by default with its inner core (the deepest layer) already selected in the facts panel.
Step 2 - switch planets
Click Mercury, Jupiter, or any other planet button to rebuild the cutaway for that world, drawn on the same shared size scale so you can compare a rocky world's small iron core against a gas giant's huge, diffuse one.
Step 3 - click a layer
Click any band in the cutaway (or read the table in the panel) to open that layer's composition note and its MEASURED or MODELED ESTIMATE evidence badge. Drag to orbit and scroll to zoom while you inspect.
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.