Demo
LevelsPrice levels on each side of the simulated book.
UpdatesFull snapshots per second.
SpreadGap between the best bid and the best ask, in USD.
VolatilityLargest move of the simulated mid per update, in USD. Raise it to watch the view glide after mid.
Perf HUDFPS, frame time, draw calls, per-series ms, heap
Display
TooltipSide, level price and cumulative size under the pointer.
LegendToggle the bid and ask walls.
CrosshairPrice and size labels at the cursor on the axes.
Series
SpanHalf-width of the view around mid, in percent of mid. 0 fits the book. Wheel or pinch to zoom; double-click resets.
Line widthWidth of the step line on each wall. 0 leaves only the fill.