See testimonials & 100+ of our 5-star reviews
Shipping & Inventory Management Software
Founded in 2015, trusted by 1000s of sellers
- Compare rates instantly
- Access pre-negotiated discounts
- Automate order fulfillment
- Sync inventory in real time


Approved Solution Provider

Approved Solution Provider

Approved Partner Program Member

Official Partner with Approved App

Approved Solution Provider
Approved solution provider for major platforms, see the full list.
Offer Free 2-Day Delivery
Fully Automated
Use multichannel fulfillment by Amazon FBA and Walmart WFS to offer fast shipping on any platform.
They handle storage, shipping, returns, and refunds — you focus on sales.

Discounted Shipping Rates
Save up to 83% on shipping with pre-negotiated carrier discounts from FedEx, UPS, USPS, DHL and Canada Post — no carrier account needed. GeekSeller, in partnership with EasyPost, lets you compare rates instantly, print labels, and automate order fulfillment.
We also integrate with Walmart’s “Ship with Walmart” and Amazon’s discounted labels, offering extra protection for lost or damaged packages at some of the lowest rates available.

USPS Merchant Discount Pricing with up to 60% off USPS retail rates

FedEx specially discounted rates for U.S. domestic and export services

Up to 77% off UPS ecommerce discounts

Save up to 34% on domestic shipping within Canada and up to 58% on international shipments

DHL eCommerce rates and up to 60% off DHL Express
And more, with support for 100+ carriers
Easy to use interface for inventory and order management
Start with our $0/mo plan

GeekSeller was fantastic to work with. Their support is top notch. They always handled every problem we had and made sure they service did exactly what we needed it to do. Highly recommended.

We see a huge shift of sellers moving their inventory to Amazon and Walmart, using them as primary 3PLs to fulfill orders from any platform.
With recent policy changes, you can now fulfill Amazon orders using Walmart Fulfillment Services (WFS) and Walmart orders using Fulfillment by Amazon (FBA).
Multichannel solutions like Amazon MCF and Walmart MCS are extremely competitive, driven by both companies’ heavy investments in logistics, warehousing, and automation.

Daniel Sodkiewicz
Co-founder of GeekSeller.com
Interview with GeekSeller CoFounder
GeekSeller Co-Founder Daniel Sodkiewicz shares his perspective on Walmart Marketplace trends in this Prosper Show 2025 interview. He highlights growth opportunities, fulfillment strategies, and how sellers can adapt to the changing e-commerce landscape.
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