Drag Lean symbols onto an engineering-grade grid, enter your cycle times, and PruneChart computes Takt, lead time and PCE to spec — live. Precision mapping, no whiteboard, no Excel.
Available working time ÷ customer demand = the pace one unit must be completed.
The map you already know how to draw — now built to spec, with the math done for you.
Processes, inventory, suppliers, trucks — placed on the grid and wired with snapping, typed arrows.
C/T, P/T, changeover, uptime and your own formula fields — recomputed on every keystroke.
Above-Takt steps flag red, the time ladder totals VA vs wait, and PCE is reported. No spreadsheet.
A live, calculating value stream map on an engineering grid.
Processes, kanban, supermarkets, FIFO lanes, kaizen bursts — canonical geometry.
Reference fields with {C/T}; metrics recompute across the map.
Any step over Takt turns red instantly — the primary waste signal.
VA vs wait, lead time and process cycle efficiency, computed live.
Clone, improve, and compare the two states side by side.
Role-based sharing and rollback to any saved revision.
Open an engineering grid, drop your first process, and read the waste straight off the map.
Start mapping free →