B-Tree Visualizer

Type one or more keys (42 or 10, 20, 5) and press Insert, Search or Delete. Enter inserts.

Drag a number from the key tray onto the canvas to insert it, or onto Search to look for it. Click a tray number to insert it.

Drag a key out of the tree onto Delete to delete it, or onto Search to search for it.

Random tree builds a tree instantly, handy before demonstrating deletion.

Space	Play / pause
→ ←	Next / previous step
Home End	Start of operation / skip to end
I	Type a key
F T	Fit to view / tidy layout
+ −	Zoom
Ctrl Z	Undo last operation
?	This help