Full-stack developer and solo maker building practical SaaS products for business, productivity, and real-world workflow

David Ferreira • Peerlist

CostRift helps businesses compare old and new supplier price lists in CSV or XLSX and quickly understand what changed.Detect price increases and decreases, identify new and removed SKUs, review uncertain matches, and see how supplier cost changes affect your margins.When selling prices are included, CostRift also calculates the target selling price needed to preserve your previous margin.Supplier files are processed locally in your browser and are not uploaded to CostRift servers.Built for e-commerce operators, purchasing teams, distributors, retailers, and anyone who regularly works with supplier price lists.