Click, drag and zoom through a life-like human brain — every lobe, the cerebellum, the brainstem, and the structures hidden deep inside. Free, private, and it runs right in your browser.
FREE · NO SIGN-UP · NOTHING UPLOADEDA living, zoomable model with 20 clickable regions across two views: the outside of a real brain, and a slice straight through its middle. Hover to highlight, tap to learn, animate to watch it work.
DRAG TO PAN · SCROLL / PINCH TO ZOOM · AMBER = OUTPUT ZONES · TEAL = INPUT ZONES
Everything works with a tap, a drag, or a pinch — here's the fastest way in.
Toggle between the lateral view (the brain from outside) and the mid-sagittal view (a cut through the midline). Both stay live, labeled and zoomable.
Every lobe, working strip and deep structure opens its own dossier: what it does, where it sits, and one fact worth remembering.
Drag to pan, scroll or pinch to zoom right up to the folds. Labels stay glued to their parts at any magnification.
Press animate to watch signals race along real pathways, or start the guided tour and step through all 20 regions.
A quick legend for the model above — what the tints, folds and dotted outlines mean, and why the two views look so different.
Each lobe is named after the skull bone covering it. In this diagram they're tinted in slightly different shades so you can see the seams — the central sulcus splits frontal from parietal, and the long lateral fissure tucks the temporal lobe underneath.
The wrinkles aren't random. Folding lets roughly 2,500 cm² of cortex fit inside the skull, and the deep grooves are stable landmarks that surgeons and students use to navigate. The faint, worm-like ridges in this model echo that real texture.
Switch to the inside view for a mid-sagittal slice — a cut through the brain's midline. The corpus callosum arcs over the thalamus, the hypothalamus and pituitary hang below it, and the hippocampus curls inside the temporal lobe.
This model trades microscopic precision for clarity — the layer of detail that homework, revision and teaching actually need. For exact surgical anatomy, reach for a proper atlas; for everything else, poke around above.
Pick the outside or inside view, then tap or click any part of the brain to see its name, what it does, and a quick fact. Drag to look around, and scroll, pinch, or use the zoom buttons to get closer. The Tour button walks you through all 20 regions step by step.
No. It's a stylized, simplified illustration built to make each part easy to spot, click and tell apart. Real brains vary in size and folding, some structures overlap or sit slightly off the midline, and the deep parts shown in the inside view are highlighted for clarity rather than drawn to scale.
The lobes view shows the brain from the outside — the four lobes, the cerebellum, the brainstem, and four working zones on the cortex. The inside view is a mid-sagittal slice through the midline, revealing the corpus callosum, thalamus, hypothalamus, pituitary, pineal gland, hippocampus, amygdala and the brainstem's lower parts.
It plays looping motion along real pathways: motor commands racing from cortex toward the spinal cord, speech travelling from Broca's to Wernicke's area, sensory signals relaying through the thalamus, and the cerebellar loop — so the brain reads as a living system instead of a static picture.
Amber marks output zones that send commands — the motor cortex and Broca's area. Teal marks input zones that receive and decode — the somatosensory cortex and Wernicke's area. Most brain regions do both; the colours just highlight the diagram's clearest examples.
In most people, yes — both usually sit in the left hemisphere, which handles language for roughly nine out of ten people. This diagram shows a left-side lateral view, so they appear where they'd typically be found.
No. The diagram runs entirely in your browser. Nothing you click, zoom or select is ever sent to a server, logged, or stored.
Yes. Tapping selects a region, dragging pans the view, and pinching zooms in or out, so the whole diagram works the same way with touch as it does with a mouse.
Yes, it's completely free with no account, no sign-up, and no limit on how much you explore.