DeltaSweep

DeltaSweep is a web app that turns existing spreadsheet-style financial or operational models into repeatable sensitivity analysis runs without rebuilding them in a specialized tool. Users upload an XLSX (or connect Google Sheets), select input cells/ranges, define distributions or step ranges, and choose outputs to track. The app runs one-way, two-way, and multi-parameter sweeps, then generates tornado charts, spider plots, and scenario tables with clear assumptions and versioning. It also includes a lightweight “model health” scan that flags common sensitivity traps (circular refs, hard-coded constants in formulas, inconsistent units). This is not a magic AI forecaster; it’s a pragmatic workflow tool that makes sensitivity analysis faster, auditable, and shareable across teams. Exports back to Excel/Sheets and produces a single-page sensitivity report for stakeholders.