What is a shipping aggregator?

A company that buys shipping services in bulk from major carriers (like USPS, UPS, FedEx) and resells them to lower-volume shippers at a discount. Most shipping software acts as a shipping aggregator to provide users with better rates than they could get on their own.

Who uses one?

Online stores managing shipping and labels

What does it cost?

Pricing varies. The cheapest provider in our Top 11 starts around $9.99/mo. See the cheapest providers ranked.

How do I pick one?

Read the full methodology for our 9.4-point scoring framework, then look at the canonical The 11 Best Shipping Software for Ecommerce. If you want a slice of the ranking by price, fit, or compliance, jump to: cheapest · highest-rated · fastest onboarding.

Source: Top 11 The 11 Best Shipping Software for Ecommerce, verified June 12, 2026.