Our Work

ShippingCostCalculator.com

Our flagship product — built from the ground up

A full-stack shipping platform that compares rates across USPS, UPS, FedEx, and DHL and lets ecommerce sellers buy discounted shipping labels at up to 70% off retail.

• Next.js + React frontend with Inter typography and flat/shadow design system
• Express REST API handling rate comparison, label purchasing, and tracking
• Shopify integration (OAuth, order sync, fulfillment)
• Stripe subscription billing + per-label invoicing
• Multi-carrier shipment tracking with email notifications
• 2.3M+ database entries for zone and rate data