ValueStreamMapping.app is free value stream mapping software in your browser: draw the value stream map with Rother/Shook symbols, and the tool calculates takt time, lead time, value-added ratio, bottleneck, OEE and EPEI for you. Timeline, current/future-state comparison, product mix, and export to PDF, PowerPoint, Excel, SVG and PNG.
Built for lean managers, CI teams and consultants: collect current-state data on the gemba with a phone and stopwatch, design the future state with the classic guidelines, run a discrete-event simulation with service level and inventory curves, track action items with owners and due dates, keep versions and edit live together. No installation, no sign-up.
New to VSM? The learning center explains value stream mapping step by step, with a full example, VSM symbols, a takt time calculator and free templates.